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/rollup/dist/loadConfigFile.js

@@ -0,0 +1,29 @@
+/*
+  @license
+	Rollup.js v4.60.2
+	Sat, 18 Apr 2026 13:58:01 GMT - commit a6be82b8abd747458afdc7484319f7b5deb92535
+
+	https://github.com/rollup/rollup
+
+	Released under the MIT License.
+*/
+'use strict';
+
+Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+
+require('node:fs/promises');
+require('node:path');
+require('node:process');
+require('node:url');
+require('./shared/rollup.js');
+require('./shared/parseAst.js');
+const loadConfigFile_js = require('./shared/loadConfigFile.js');
+require('path');
+require('./native.js');
+require('node:perf_hooks');
+require('./getLogFilter.js');
+
+
+
+exports.loadConfigFile = loadConfigFile_js.loadConfigFile;
+//# sourceMappingURL=loadConfigFile.js.map