Fixes #25310

* Refer to Sudo in Linux filesave error

* Remove non-localized string constants

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

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.

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