Revert "refactor: Dialog BuildContext"

This reverts commit 315a43c1a4.

lib/pages/chat/events/image_bubble.dart

@@ -77,6 +77,7 @@ class ImageBubble extends StatelessWidget {
     if (!tapToView) return;
     showDialog(
       context: context,
+      useRootNavigator: false,
       builder: (_) => ImageViewer(event),
     );
   }

lib/pages/chat/events/message_reactions.dart

@@ -193,6 +193,7 @@ class _AdaptableReactorsDialog extends StatelessWidget {
         context: context,
         builder: (context) => this,
         barrierDismissible: true,
+        useRootNavigator: false,
       );
 
   @override

lib/pages/chat/events/video_player.dart

@@ -59,6 +59,7 @@ class EventVideoPlayerState extends State<EventVideoPlayer> {
         );
       } else if (!kIsWeb && tmpFile != null && _chewieManager == null) {
         _chewieManager ??= ChewieController(
+          useRootNavigator: false,
           videoPlayerController: VideoPlayerController.file(tmpFile),
           autoPlay: true,
           autoInitialize: true,