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/lib0/dist/websocket.cjs

@@ -0,0 +1,17 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+require('./observable.cjs');
+require('./time-d8438852.cjs');
+require('./math-96d5e8c4.cjs');
+var websocket = require('./websocket-b073d0fc.cjs');
+require('./map-24d263c0.cjs');
+require('./set-5b47859e.cjs');
+require('./array-78849c95.cjs');
+require('./metric.cjs');
+
+
+
+exports.WebsocketClient = websocket.WebsocketClient;
+//# sourceMappingURL=websocket.cjs.map