New right panel visual language (#11664)

* New right panel visual language

* Upgrade Compound

* Align old room header with right panel

* Rigth panel look and feel

* Fix linting and e2e tests

* Update snapshot

* Add test

* Lint

* Remove screenshot local script

* Update snapshots and UI based on feedback

* fix i18n key

* Update right panel visuals

* Fix tests

* lintfixes

* fix tests

* fix tests

* Add tests for search icon

* Fix invite dialog spec

test/components/views/elements/__snapshots__/AppTile-test.tsx.snap

@@ -3,7 +3,7 @@
 exports[`AppTile destroys non-persisted right panel widget on room change 1`] = `
 <DocumentFragment>
   <aside
-    class="mx_RightPanel dark-panel"
+    class="mx_RightPanel"
     id="mx_RightPanel"
   >
     <div