[Enhancement] Scope .totalpages to last .resetpagenumber via document|section argument

Before submitting

• I am using the latest version of Quarkdown.
• I have checked the wiki to confirm this feature doesn't already exist.
• I have searched existing issues for duplicates.

Description

I would want .totalpages to also be affected by .resetpagenumber. Consider this scenario where I don't want a numbering on the title page:

.doctype {paged}

.center 
    #! Title Page
.pagebreak

# First content page
.pagemargin {bottomcenter}
    .currentpage / .totalpages
.resetpagenumber

# Second content page

# Third content page

I want the page numbering to range from 1/3 to 3/3. Instead it ranges from 1/4 to 3/4.

Proposed syntax or behavior

A relatively easy and backwards-compatible fix would be to allow .totalpages to have an optional argument being one of document | section with document being the default.

• document will act as the .totalpages-command just as before
• section will be the number of pages starting from either the last .resetpagenumber-command (considering the start argument there) or the document start

Additional context

This would actually also mimic the behaviour of Microsoft Word, which uses {NUMPAGES} for the total page count of the whole document and {SECTIONPAGES} for the total page count only within the current section.

I am using quakdown version 2.3.1.