editor: fix glyph margin links not working (#224352)

* debug: improve behavior for slow-running prelaunch tasks

Shows this notification if a prelaunch task has been running for more
than 10 seconds:

![](https://memes.peet.io/img/24-07-be15cd9d-c9cd-40dc-8937-9d62466e5c96.png)

Also does a little cleanup of some probably-leaking disposables in the task runner.

Fixes #218267

* hygenie

* editor: fix glyph margin links not working

The constructor was missing decorations, so _openingService was always undefined and links did not open.

Fixes #214786

cc @aiday-mar

src/vs/editor/contrib/hover/browser/marginHoverWidget.ts

@@ -34,8 +34,8 @@ export class MarginHoverWidget extends Disposable implements IOverlayWidget, IHo
 
 	constructor(
 		editor: ICodeEditor,
-		languageService: ILanguageService,
-		openerService: IOpenerService,
+		@ILanguageService languageService: ILanguageService,
+		@IOpenerService openerService: IOpenerService,
 	) {
 		super();
 		this._editor = editor;