This is a continuation of the work from #85164.

Debt

• ViewDescriptorService tests Write tests of ViewsDescriptorService #89686
• Remove sync openPanel in favor of async Remove sync version of openPanel #89723
• Fix issue with panel naming before opening Panel name changes after showing the panel #88637
• Have all panels using the new infrastructure Migrate Terminal Panel to ViewPane #90252 Adopt Output panel to use views #89993 50bc5d7
• Make sure views are not using panel or viewlet semantics (IPanelService, IViewletService)
  Use IViewsService while using views and view containers #90020
• Introduce attachStyler in ViewPane so that implementing views can simply attach tree or list using it. No longer necessary

Features

• Ensure all core views can be moved without issue
  • Explorer
    • Open Editors a28e0a9
    • File Explorer
    • Timeline d05b784
  • Source Control Enable SCM Views to move to panel #90461
  • Search
  • Run and Debug Allow moving debug viewlet items to the panel #90468
  • Extensions (will not be enabled)
  • References view?
  • Remote
• Invert canMove property to allow exclusion of extensions viewlet views
• Drag and drop support between existing containers
• Drag and drop support into new containers

Future (Not targeted for February)

• Generate icons for panel views/containers to enable new containers in sidebar from panel views
• Enable multiple views in panels