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/core-js/features/promise/all-settled.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('../../full/promise/all-settled');

node_modules/core-js/features/promise/any.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('../../full/promise/any');

node_modules/core-js/features/promise/finally.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('../../full/promise/finally');

node_modules/core-js/features/promise/index.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('../../full/promise');

node_modules/core-js/features/promise/try.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('../../full/promise/try');

node_modules/core-js/features/promise/with-resolvers.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('../../full/promise/with-resolvers');