FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/commander/typings/esm.d.mts

@@ -0,0 +1,3 @@
+// Just reexport the types from cjs
+// This is a bit indirect. There is not an index.js, but TypeScript will look for index.d.ts for types.
+export * from './index.js';