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/promise.cjs

@@ -0,0 +1,22 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+require('./time-d8438852.cjs');
+var promise = require('./promise-cda7b9bb.cjs');
+require('./metric.cjs');
+require('./math-96d5e8c4.cjs');
+
+
+
+exports.all = promise.all;
+exports.create = promise.create;
+exports.createEmpty = promise.createEmpty;
+exports.isPromise = promise.isPromise;
+exports.reject = promise.reject;
+exports.resolve = promise.resolve;
+exports.resolveWith = promise.resolveWith;
+exports.until = promise.until;
+exports.untilAsync = promise.untilAsync;
+exports.wait = promise.wait;
+//# sourceMappingURL=promise.cjs.map