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/react-native/React/Views/RCTModalManager.m

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTModalManager.h"
+
+#ifndef RCT_REMOVE_LEGACY_ARCH
+
+@interface RCTModalManager ()
+
+@property BOOL shouldEmit;
+
+@end
+
+@implementation RCTModalManager
+
+RCT_EXPORT_MODULE();
+
+- (NSArray<NSString *> *)supportedEvents
+{
+  return @[ @"modalDismissed" ];
+}
+
+- (void)startObserving
+{
+  _shouldEmit = YES;
+}
+
+- (void)stopObserving
+{
+  _shouldEmit = NO;
+}
+
+- (void)modalDismissed:(NSNumber *)modalID
+{
+  if (_shouldEmit) {
+    [self sendEventWithName:@"modalDismissed" body:@{@"modalID" : modalID}];
+  }
+}
+
+@end
+
+#endif // RCT_REMOVE_LEGACY_ARCH