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/yaml/dist/compose/util-flow-indent-check.js

@@ -0,0 +1,17 @@
+'use strict';
+
+var utilContainsNewline = require('./util-contains-newline.js');
+
+function flowIndentCheck(indent, fc, onError) {
+    if (fc?.type === 'flow-collection') {
+        const end = fc.end[0];
+        if (end.indent === indent &&
+            (end.source === ']' || end.source === '}') &&
+            utilContainsNewline.containsNewline(fc)) {
+            const msg = 'Flow end indicator should be more indented than parent';
+            onError(end, 'BAD_INDENT', msg, true);
+        }
+    }
+}
+
+exports.flowIndentCheck = flowIndentCheck;