Possibly for #102733

Tries to get users out of a potential bad state where the state was being stored as a string. Only insiders users should have hit this

Getting ready to have worker based TS servers instead of ones that use a process

- Use standard error handler instead of having separate reader error
- Move all process based server logic into own file (`serverProcess`)

For serverless, we will only be able to run the TypeScript syntax server which does not support all features. This change makes this possible by adding the concept of client capabilities. Providers such as rename will only be registered when the client has semantic capabilities

This allows us to pass a precomputed, flat list of requirements when registering a language feature

* * paragraphs inside of <ul>'s were too spaced apart.
* It looks odd because markdown converts list items to <p>s

* li > p should be even better

Built-in XSLT extension has 'brackets' setting that prevents bracket-matching for embedded XPath 1.0-3.1 Fixes #102584

Fixes #102684

- introduce sync and cancel buttons
- ability to discard
- update entries on state change with decorations

add eol to IMainCellDto, no more attach/dettach text document but use the actual (sync'd) document or a fallback cell document

related to #101103

Part of #100741