This reverts commit 27256832 which turns out did not break the import of vs/nls

This reverts commit 7de696a2.

Seems to have broken loading vs/nls in at least one case in insiders

Don't use this import form in places where it is not needed. This prevents us from correctly detecting duplicate imports

#38414

fixes #37320

* debt - syncdescriptors for composite

* debt - syncdescriptor for baseeditor

* debt - syncdescriptor for quickopenhandler

* debt - remove asyncdescriptor

* debt - introduce editor.ts in browser namespace

* fix todos

* Replace focussed with focused

* Replace Focussed with Focused

- Dispose listeners
- Expand the view if it is only view
- Check sash index before disposing

- Initial version of custom views and tree data provider API

- Adopt proposed API to contribute explorer views
- Adopt extension host and main to contribute explorer views
- Implement contributable views in explorer viewlet

Fix #9513