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/lodash/_getAllKeys.js

@@ -0,0 +1,16 @@
+var baseGetAllKeys = require('./_baseGetAllKeys'),
+    getSymbols = require('./_getSymbols'),
+    keys = require('./keys');
+
+/**
+ * Creates an array of own enumerable property names and symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+function getAllKeys(object) {
+  return baseGetAllKeys(object, keys, getSymbols);
+}
+
+module.exports = getAllKeys;