Fix any cases in md extension

[mjbvz]

For #269213

[Copilot]

Pull Request Overview

This PR removes unnecessary any type casts and consolidates type imports in the markdown language features extension. The changes aim to improve type safety by replacing any casts with more specific type annotations and removing redundant type imports.

Key changes:

• Consolidated Token type imports to use MarkdownIt.Token instead of separate imports
• Replaced any casts with more specific type annotations like unknown and proper interfaces
• Updated package dependencies to newer versions

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/markdownEngine.ts	Removed separate Token import, updated all Token references to use MarkdownIt.Token namespace, removed unnecessary any cast
src/languageFeatures/diagnostics.ts	Replaced any cast with unknown cast and proper Record type annotation
src/client/protocol.ts	Removed separate Token import, updated parse request type to use md.Token[]
preview-src/index.ts	Added proper State interface, removed multiple any casts, improved type safety
package.json	Updated morphdom and @types/markdown-it dependencies to newer versions
notebook/index.ts	Removed separate Token import, updated all Token references to MarkdownIt.Token, improved function signature types

Files not reviewed (1)

• extensions/markdown-language-features/package-lock.json: Language not supported

[bpasero]

Red CI

[mjbvz]

Seriously considering if we can switch off of webpack because I cannot seem to track down why it doesn't check the TS the same way as tsc despite me giving it the same tsconfig

[bpasero]

esbuild all the way ✨

Fixed CI. Should be good now that markdown is using esbuild