feature: codeblocks should have a true left margin

Beginne mit der Konfiguration im Code des Plugins, insbesondere mit den vorhandenen Optionen left_margin, left_pad, background_inset und width, und vergleiche, wie die Einrückung von Überschriften dargestellt wird. Erledigt ist die Aufgabe, wenn Codeblöcke über einen konfigurierbaren Rand nach rechts verschoben werden können und der Hintergrund diesen Rand abdeckt, ohne die Einrückungszeilen zu beeinflussen.

Is your feature request related to a problem? Please describe.

margin for other elements like headings, bullets etc is true margin i.e. the cursor cannot enter that area in normal mode. codeblocks should also have a similar margin, this would improve their appearance a lot.

something like this. i have added 2 spaces before ach line of code, but that doesn't work well as the indentation lines show up on the left side. the actual codeblock markers start from that indentation line..

but if instead we can move the entire codeblock right by 2 spaces and highlight those two spaces with code block color, it would improve the appearance of the code block and also not mess up with the indentation lines.

Describe the solution you'd like

the solution would be to add an option "block_margin" or something similar which would work similar to heading indentations but the codeblock will still be rendered (the background) on those margin spaces...

Describe alternatives you've considered

alternative is to just be happy in what you have :)

Additional information

my plugin config

return {
  "MeanderingProgrammer/render-markdown.nvim",
  config = function()
    require("render-markdown").setup({
      render_modes = true,
      anti_conceal = {
        enabled = true,
        disabled_modes = false,
        above = 0,
        below = 0,
        ignore = {
          code_background = true,
          indent = true,
          sign = true,
          virtual_lines = true,
        },
      },
      link = {
        enabled = true,
        render_modes = false,
        footnote = {
          enabled = true,
          icon = "󰯔 ",
          body = function(ctx)
            return ctx.text
          end,
          superscript = true,
          prefix = "",
          suffix = "",
        },
        image = "󰥶 ",
        image_custom = true,
        email = "󰀓 ",
        hyperlink = "󰌹 ",
        highlight = "RenderMarkdownLink",
        highlight_title = "RenderMarkdownLinkTitle",
        wiki = {
          enabled = true,
          icon = "󱗖 ",
          conceal_destination = true,
          body = function()
            return nil
          end,
          highlight = "RenderMarkdownWikiLink",
          scope_highlight = nil,
        },
        custom = {
          web = { icon = "󰖟 ", pattern = "^http" },
          apple = { icon = " ", pattern = "apple%.com", kind = "url" },
          discord = { icon = "󰙯 ", pattern = "discord%.com", kind = "url" },
          github = { icon = "󰊤 ", pattern = "github%.com", kind = "url" },
          gitlab = { icon = "󰮠 ", pattern = "gitlab%.com", kind = "url" },
          google = { icon = "󰊭 ", pattern = "google%.com", kind = "url" },
          hackernews = { icon = " ", pattern = "ycombinator%.com", kind = "url" },
          linkedin = { icon = "󰌻 ", pattern = "linkedin%.com", kind = "url" },
          microsoft = { icon = " ", pattern = "microsoft%.com", kind = "url" },
          neovim = { icon = " ", pattern = "neovim%.io", kind = "url" },
          reddit = { icon = "󰑍 ", pattern = "reddit%.com", kind = "url" },
          slack = { icon = "󰒱 ", pattern = "slack%.com", kind = "url" },
          stackoverflow = { icon = "󰓌 ", pattern = "stackoverflow%.com", kind = "url" },
          steam = { icon = " ", pattern = "steampowered%.com", kind = "url" },
          twitter = { icon = " ", pattern = "twitter%.com", kind = "url" },
          wikipedia = { icon = "󰖬 ", pattern = "wikipedia%.org", kind = "url" },
          x = { icon = " ", pattern = "x%.com", kind = "url" },
          youtube = { icon = "󰗃 ", pattern = "youtube[^.]*%.com", kind = "url" },
          youtube_short = { icon = "󰗃 ", pattern = "youtu%.be", kind = "url" },
        },
      },
      bullet = {
        enabled = true,
        render_modes = false,
        icons = { "•", "•", "•", "•" },
        ordered_icons = function(ctx)
          local value = vim.trim(ctx.value)
          local index = tonumber(value:sub(1, #value - 1))
          return ("%d."):format(index > 1 and index or ctx.index)
        end,
        left_pad = 0,
        right_pad = 0,
        highlight = "RenderMarkdownBullet",
        scope_highlight = {},
        scope_priority = nil,
      },
      quote = {
        enabled = true,
        render_modes = false,
        icon = "▋",
        repeat_linebreak = false,
        highlight = {
          "RenderMarkdownQuote1",
          "RenderMarkdownQuote2",
          "RenderMarkdownQuote3",
          "RenderMarkdownQuote4",
          "RenderMarkdownQuote5",
          "RenderMarkdownQuote6",
        },
      },
      callout = {
        note = {
          raw = "[!NOTE]",
          rendered = "󰋽  Note",
          highlight = "RenderMarkdownInfo",
          category = "github",
        },
        tip = {
          raw = "[!TIP]",
          rendered = "󰌶 Tip",
          highlight = "RenderMarkdownSuccess",
          category = "github",
        },
        important = {
          raw = "[!IMPORTANT]",
          rendered = "󰅾  Important",
          highlight = "RenderMarkdownHint",
          category = "github",
        },
        warning = {
          raw = "[!WARNING]",
          rendered = "󰀪  Warning",
          highlight = "RenderMarkdownWarn",
          category = "github",
        },
        caution = {
          raw = "[!CAUTION]",
          rendered = "󰳦  Caution",
          highlight = "RenderMarkdownError",
          category = "github",
        },
        abstract = {
          raw = "[!ABSTRACT]",
          rendered = "󰨸  Abstract",
          highlight = "RenderMarkdownInfo",
          category = "obsidian",
        },
        summary = {
          raw = "[!SUMMARY]",
          rendered = "󰨸  Summary",
          highlight = "RenderMarkdownInfo",
          category = "obsidian",
        },
        tldr = {
          raw = "[!TLDR]",
          rendered = "󰨸  TL;DR",
          highlight = "RenderMarkdownInfo",
          category = "obsidian",
        },
        info = {
          raw = "[!INFO]",
          rendered = "󰋽  Info",
          highlight = "RenderMarkdownInfo",
          category = "obsidian",
        },
        todo = {
          raw = "[!TODO]",
          rendered = "󰗡  Todo",
          highlight = "RenderMarkdownInfo",
          category = "obsidian",
        },
        hint = {
          raw = "[!HINT]",
          rendered = "󰌶 Hint",
          highlight = "RenderMarkdownSuccess",
          category = "obsidian",
        },
        success = {
          raw = "[!SUCCESS]",
          rendered = "󰄬  Success",
          highlight = "RenderMarkdownSuccess",
          category = "obsidian",
        },
        check = {
          raw = "[!CHECK]",
          rendered = "󰄬  Check",
          highlight = "RenderMarkdownSuccess",
          category = "obsidian",
        },
        done = {
          raw = "[!DONE]",
          rendered = "󰄬  Done",
          highlight = "RenderMarkdownSuccess",
          category = "obsidian",
        },
        question = {
          raw = "[!QUESTION]",
          rendered = "󰘥  Question",
          highlight = "RenderMarkdownWarn",
          category = "obsidian",
        },
        help = {
          raw = "[!HELP]",
          rendered = "󰘥  Help",
          highlight = "RenderMarkdownWarn",
          category = "obsidian",
        },
        faq = {
          raw = "[!FAQ]",
          rendered = "󰘥  Faq",
          highlight = "RenderMarkdownWarn",
          category = "obsidian",
        },
        attention = {
          raw = "[!ATTENTION]",
          rendered = "󰀪  Attention",
          highlight = "RenderMarkdownWarn",
          category = "obsidian",
        },
        failure = {
          raw = "[!FAILURE]",
          rendered = "󰅖 Failure",
          highlight = "RenderMarkdownError",
          category = "obsidian",
        },
        fail = {
          raw = "[!FAIL]",
          rendered = "󰅖 Fail",
          highlight = "RenderMarkdownError",
          category = "obsidian",
        },
        missing = {
          raw = "[!MISSING]",
          rendered = "󰅖 Missing",
          highlight = "RenderMarkdownError",
          category = "obsidian",
        },
        danger = {
          raw = "[!DANGER]",
          rendered = "󱐌 Danger",
          highlight = "RenderMarkdownError",
          category = "obsidian",
        },
        error = {
          raw = "[!ERROR]",
          rendered = "󱐌 Error",
          highlight = "RenderMarkdownError",
          category = "obsidian",
        },
        bug = {
          raw = "[!BUG]",
          rendered = "󰨰 Bug",
          highlight = "RenderMarkdownError",
          category = "obsidian",
        },
        example = {
          raw = "[!EXAMPLE]",
          rendered = "󰉹  Example",
          highlight = "RenderMarkdownHint",
          category = "obsidian",
        },
        quote = {
          raw = "[!QUOTE]",
          rendered = "󱆨  Quote",
          highlight = "RenderMarkdownQuote",
          category = "obsidian",
        },
        cite = {
          raw = "[!CITE]",
          rendered = "󱆨  Cite",
          highlight = "RenderMarkdownQuote",
          category = "obsidian",
        },
      },
      checkbox = {
        enabled = false,
        render_modes = false,
        bullet = false,
        left_pad = 0,
        right_pad = 1,
        unchecked = {
          icon = "󰄱 ",
          highlight = "RenderMarkdownUnchecked",
          scope_highlight = nil,
        },
        checked = {
          icon = "󰱒 ",
          highlight = "RenderMarkdownChecked",
          scope_highlight = nil,
        },
        custom = {
          todo = { raw = "[-]", rendered = "󰥔 ", highlight = "RenderMarkdownTodo", scope_highlight = nil },
        },
        scope_priority = nil,
      },
      code = {
        enabled = true,
        render_modes = true,
        sign = false,
        conceal_delimiters = false,
        language = true,
        position = "left",
        language_icon = false,
        language_name = false,
        language_info = false,
        language_pad = 0,
        disable = {},
        disable_background = { "diff" },
        background_inset = 1,
        width = "block",
        left_margin = 0,
        left_pad = 0,
        right_pad = 0,
        min_width = 90,
        border = "thin",
        language_border = "█",
        language_left = "",
        language_right = "",
        above = "▄",
        below = "▀",
        inline = true,
        inline_left = "",
        inline_right = "",
        inline_pad = 0,
        priority = 140,
        highlight = "RenderMarkdownCode",
        highlight_info = "RenderMarkdownCodeInfo",
        highlight_language = nil,
        highlight_border = "RenderMarkdownCodeBorder",
        highlight_fallback = "RenderMarkdownCodeFallback",
        highlight_inline = "RenderMarkdownCodeInline",
        highlight_inline_left = nil,
        highlight_inline_right = nil,
        style = "full",
      },
      dash = {
        enabled = true,
        render_modes = false,
        icon = "─",
        width = "full",
        left_margin = 0,
        priority = nil,
        highlight = "RenderMarkdownDash",
      },
      indent = {
        enabled = true,
        render_modes = true,
        per_level = 1,
        skip_level = 1,
        skip_heading = false,
        icon = " ",
        priority = 0,
        highlight = "RenderMarkdownIndent",
      },
      paragraph = {
        enabled = true,
        render_modes = false,
        left_margin = 0,
        indent = 0,
        min_width = 0,
      },
      heading = {
        enabled = true,
        render_modes = false,
        atx = true,
        setext = true,
        sign = false,
        -- icons = { "◉  ", "○  ", "✸  ", "✿  ", "✿  ", "✿  " },
        icons = { "# ", "## ", "### ", "#### ", "##### ", "###### " },
        position = "overlay",
        signs = { "󰫎 " },
        width = "full",
        left_margin = 0,
        left_pad = 0,
        right_pad = 0,
        min_width = 0,
        border = false,
        border_virtual = false,
        border_prefix = false,
        above = "▄",
        below = "▀",
        backgrounds = {
          "RenderMarkdownH1Bg",
          "RenderMarkdownH2Bg",
          "RenderMarkdownH3Bg",
          "RenderMarkdownH4Bg",
          "RenderMarkdownH5Bg",
          "RenderMarkdownH6Bg",
        },
        foregrounds = {
          "RenderMarkdownH1",
          "RenderMarkdownH2",
          "RenderMarkdownH3",
          "RenderMarkdownH4",
          "RenderMarkdownH5",
          "RenderMarkdownH6",
        },
        custom = {},
      },
      pipe_table = {
        enabled = true,
        render_modes = true,
        preset = "none",
        cell = "padded",
        cell_offset = function()
          return 0
        end,
        padding = 1,
        min_width = 0,
        border = {
          "┌",
          "┬",
          "┐",
          "├",
          "┼",
          "┤",
          "└",
          "┴",
          "┘",
          "│",
          "─",
        },
        border_enabled = false,
        border_virtual = false,
        alignment_indicator = "━",
        head = "RenderMarkdownTableHead",
        row = "RenderMarkdownTableRow",
        style = "full",
      },
      completions = {
        lsp = { enabled = true },
      },
    })
  end,
}