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/better-sqlite3/lib/sqlite-error.js

@@ -0,0 +1,20 @@
+'use strict';
+const descriptor = { value: 'SqliteError', writable: true, enumerable: false, configurable: true };
+
+function SqliteError(message, code) {
+	if (new.target !== SqliteError) {
+		return new SqliteError(message, code);
+	}
+	if (typeof code !== 'string') {
+		throw new TypeError('Expected second argument to be a string');
+	}
+	Error.call(this, message);
+	descriptor.value = '' + message;
+	Object.defineProperty(this, 'message', descriptor);
+	Error.captureStackTrace(this, SqliteError);
+	this.code = code;
+}
+Object.setPrototypeOf(SqliteError, Error);
+Object.setPrototypeOf(SqliteError.prototype, Error.prototype);
+Object.defineProperty(SqliteError.prototype, 'name', descriptor);
+module.exports = SqliteError;