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/stable/array-buffer/constructor.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../es/array-buffer/constructor');
+
+module.exports = parent;

node_modules/core-js/stable/array-buffer/detached.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../es/array-buffer/detached');
+
+module.exports = parent;

node_modules/core-js/stable/array-buffer/index.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../es/array-buffer');
+
+module.exports = parent;

node_modules/core-js/stable/array-buffer/is-view.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../es/array-buffer/is-view');
+
+module.exports = parent;

node_modules/core-js/stable/array-buffer/slice.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../es/array-buffer/slice');
+
+module.exports = parent;

node_modules/core-js/stable/array-buffer/transfer-to-fixed-length.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../es/array-buffer/transfer-to-fixed-length');
+
+module.exports = parent;

node_modules/core-js/stable/array-buffer/transfer.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../es/array-buffer/transfer');
+
+module.exports = parent;