Fixes #86107

* Change labels of URI's in multi-root workspaces to be
[RootName] • [Path From RootPaath to File]
rather than
[RootName] • [basename RootPath]/[Path From RootPath to File]
in cases where the root has an explicit name and
[RootName] • [Path From RootName to File]
in cases where the root's name is defaulted to basename

* Fixup cases where context added after path.
(07339824)

* Remove unused

* Additional test case

* Reposition Editor Reopen With action.
* 1_open
Co-authored-by: NBenjamin Pasero <benjpas@microsoft.com>

Add #97640: Added options to enable codelens for diff editors

cc @mjbvz

Fix #102049

Fix #101940

activitybar treated as unit for kb nav