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/es/set/difference.js

@@ -0,0 +1,6 @@
+'use strict';
+require('../../modules/es.set');
+require('../../modules/es.set.difference.v2');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Set', 'difference');

node_modules/core-js/es/set/index.js

@@ -0,0 +1,15 @@
+'use strict';
+require('../../modules/es.array.iterator');
+require('../../modules/es.object.to-string');
+require('../../modules/es.set');
+require('../../modules/es.set.difference.v2');
+require('../../modules/es.set.intersection.v2');
+require('../../modules/es.set.is-disjoint-from.v2');
+require('../../modules/es.set.is-subset-of.v2');
+require('../../modules/es.set.is-superset-of.v2');
+require('../../modules/es.set.symmetric-difference.v2');
+require('../../modules/es.set.union.v2');
+require('../../modules/es.string.iterator');
+var path = require('../../internals/path');
+
+module.exports = path.Set;

node_modules/core-js/es/set/intersection.js

@@ -0,0 +1,6 @@
+'use strict';
+require('../../modules/es.set');
+require('../../modules/es.set.intersection.v2');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Set', 'intersection');

node_modules/core-js/es/set/is-disjoint-from.js

@@ -0,0 +1,6 @@
+'use strict';
+require('../../modules/es.set');
+require('../../modules/es.set.is-disjoint-from.v2');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Set', 'isDisjointFrom');

node_modules/core-js/es/set/is-subset-of.js

@@ -0,0 +1,6 @@
+'use strict';
+require('../../modules/es.set');
+require('../../modules/es.set.is-subset-of.v2');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Set', 'isSubsetOf');

node_modules/core-js/es/set/is-superset-of.js

@@ -0,0 +1,6 @@
+'use strict';
+require('../../modules/es.set');
+require('../../modules/es.set.is-superset-of.v2');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Set', 'isSupersetOf');

node_modules/core-js/es/set/symmetric-difference.js

@@ -0,0 +1,6 @@
+'use strict';
+require('../../modules/es.set');
+require('../../modules/es.set.symmetric-difference.v2');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Set', 'symmetricDifference');

node_modules/core-js/es/set/union.js

@@ -0,0 +1,6 @@
+'use strict';
+require('../../modules/es.set');
+require('../../modules/es.set.union.v2');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Set', 'union');