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/zustand/shallow.js

@@ -0,0 +1,15 @@
+'use strict';
+
+var shallow = require('zustand/vanilla/shallow');
+var shallow$1 = require('zustand/react/shallow');
+
+
+
+Object.defineProperty(exports, "shallow", {
+	enumerable: true,
+	get: function () { return shallow.shallow; }
+});
+Object.defineProperty(exports, "useShallow", {
+	enumerable: true,
+	get: function () { return shallow$1.useShallow; }
+});