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/modules/es.math.asinh.js

@@ -0,0 +1,21 @@
+'use strict';
+var $ = require('../internals/export');
+
+// eslint-disable-next-line es/no-math-asinh -- required for testing
+var $asinh = Math.asinh;
+var log = Math.log;
+var sqrt = Math.sqrt;
+
+function asinh(x) {
+  var n = +x;
+  return !isFinite(n) || n === 0 ? n : n < 0 ? -asinh(-n) : log(n + sqrt(n * n + 1));
+}
+
+var FORCED = !($asinh && 1 / $asinh(0) > 0);
+
+// `Math.asinh` method
+// https://tc39.es/ecma262/#sec-math.asinh
+// Tor Browser bug: Math.asinh(0) -> -0
+$({ target: 'Math', stat: true, forced: FORCED }, {
+  asinh: asinh
+});