show modal using the nearest navigator

packages/stream_chat_flutter/lib/src/message_widget.dart

@@ -908,6 +908,7 @@ class _MessageWidgetState extends State<MessageWidget>
     final channel = StreamChannel.of(context).channel;
 
     showDialog(
+        useRootNavigator: false,
         context: context,
         barrierColor: _streamChatTheme.colorTheme.overlay,
         builder: (context) => StreamChannel(
@@ -959,6 +960,7 @@ class _MessageWidgetState extends State<MessageWidget>
   void _showMessageReactionsModalBottomSheet(BuildContext context) {
     final channel = StreamChannel.of(context).channel;
     showDialog(
+      useRootNavigator: false,
       context: context,
       barrierColor: _streamChatTheme.colorTheme.overlay,
       builder: (context) => StreamChannel(

packages/stream_chat_flutter/lib/src/utils.dart

@@ -30,6 +30,7 @@ Future<bool?> showConfirmationDialog(
 }) {
   final chatThemeData = StreamChatTheme.of(context);
   return showModalBottomSheet(
+      useRootNavigator: false,
       backgroundColor: chatThemeData.colorTheme.white,
       context: context,
       shape: const RoundedRectangleBorder(
@@ -114,6 +115,7 @@ Future<bool?> showInfoDialog(
 }) {
   final chatThemeData = StreamChatTheme.of(context);
   return showModalBottomSheet(
+    useRootNavigator: false,
     backgroundColor: theme?.colorTheme.white ?? chatThemeData.colorTheme.white,
     context: context,
     shape: const RoundedRectangleBorder(