✨ Add missing theme tokens

该 issue 没有指出文件或测试；首先定位 theme-token 定义和捆绑的 theme 资源，然后将现有的 Types 和 Variables 条目与提议的 token 列表进行比较。完成的标准是：实现所请求的 token，按指定内容替换旧条目，并确保所有捆绑的 theme 都包含更新后的 token。

Description

We currently have "Types" and "Variables" theme tokens. We should replace these two with "Types Declarations", "Type Names", "Variable Declarations", "Variable Names". There are also several more that we might add...

• classNames
• typeDeclarations
• typeNames
• variableDeclarations
• variableNames
• functionDeclarations
• functionNames
• propertyNames
• constants
• parameterNames
• moduleNames
• namespaceNames
• preprocessorMacros
• enumMembers
• annotations

If we added these, the complete token list would look like this...

• text
• background
• insertionPoint
• lineHighlight
• selection
• invisibles
• keywords
• classNames
• types
• typeDeclarations
• typeNames
• attributes
• commands
• values
• constants
• numbers
• strings
• characters
• variableDeclarations
• variableNames
• propertyNames
• parameterNames
• functionDeclarations
• functionNames
• moduleNames
• namespaceNames
• enumMembers
• preprocessorMacros
• annotations
• comments

Additional Context

In Xcode, class names, function names, type names, etc. are differentiated between “Project” and “Other”. This helps developers quickly see what’s part of their project vs. an external dependency, making it easier to navigate complex projects, identify ownership of code, and make refactoring decisions. Is this something we want to implement as well?

We also need to update all of our bundled themes to include these tokens.