Fixes#72155
Adds a constant to the api that tracks the root path for resources inside of webviews. This is required because we will not be able to use `vscode-resource:` uris on the web. Our current approach is to rewrite the html we are given but there are almost certainly going to be cases where we don't get this quite right.
Adopts the new api for the markdown preview
* upstream/master: (34 commits)
Fix markdown.styled regression caused by Uri.parse changes
Process explorer refactoring
fix compile error
fix open workspace uri from cli
Delete deprecated search provider stub
test dependenices are devDependencies
Fix default uri when scheme is file
disable flaky test, #71801
use `readonly T[]` instead of `ReadonlyArray<T>`
simplify protocol check
Let enablment service handles local workspace extensions in remote window
debt - make ext host init data more complete
Fix colorization tests
fixes#71671
Update grammars
Add yes-no choice for overwriting existing file for save as
update distro
ExtensionEnablementService: - Remove getDisabledExtensions and instead use isEnabled or getEnablementState methods
Simplify reload action and fix test
Update distro hash
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Switch to always hiding the frontmatter and then allowing markdown-it plugins to render it properly if they wish. `previewFrontMatter: "show"` is also not very useful since it usually results in a jumble of text at the top of the file
This is required with the new performance work to avoid re-tokenizing the document multiple times during rendering
