Found while looking into #63467

There's potential leak for `DecorationCSSRules`. Currently we only dipose of them if `hasContent` is true, which I'm not sure guarantees that these classes are truely non-disposable

With this change, we always dispose of them. At worst, these extra dispose call should be noops

This should always be true

Fixes #58492

**Bug**
If multiple triggers come in at the same time, we currently lose the re-trigger state. This is caused by each trigger canceling the existing request. The first one is treated as a re-trigger, but all subsquent triggers look like fresh triggers

**Fix**
Move the cancelation into the actual trigger body.

Make sure we a trigger always cancels any pending requests, even if the model is now invalid

Try to avoid using as much state.

The body of these specific events are always non-null

Fixes #62978

Fixes #63181

This is a replacement for the `_typescript.configurePlugin` command. Using a command, it is easy to forget to check if the js-ts extension is active before executing it. Using an actual api prevents this  and also allows better typing

fixes #63436

Fixes #63448

**Bug**
go to definition and go to declaration both were registered with the `editor.action.goToRealDeclaration`  command id.

**Fix**
Use temporary new command id to avoid this. We should change the id to something better.

fixes #63369

remove centered layout from layout menu