update dependencies

lib/src/message_input.dart

@@ -938,7 +938,8 @@ class MessageInputState extends State<MessageInput> {
     super.initState();
 
     if (!kIsWeb) {
-      _keyboardListener = KeyboardVisibility.onChange.listen((visible) {
+      _keyboardListener =
+          KeyboardVisibilityController().onChange.listen((visible) {
         if (visible) {
           _onChange();
         } else {
@@ -962,6 +963,10 @@ class MessageInputState extends State<MessageInput> {
 
   Timer _debounce;
   void _onChange() {
+    if (_debounce?.isActive == true) _debounce.cancel();
+    _debounce = Timer(
+      const Duration(milliseconds: 350),
+      () {
         final s = textEditingController.text;
         StreamChannel.of(context).channel.keyStroke(
               widget.parentMessage?.id,
@@ -989,16 +994,12 @@ class MessageInputState extends State<MessageInput> {
                 .split(' ')
                 .last
                 .contains('@')) {
-      if (_debounce?.isActive == true) _debounce.cancel();
-      _debounce = Timer(
-        const Duration(milliseconds: 500),
-        () {
           _mentionsOverlay = _buildMentionsOverlayEntry();
           Overlay.of(context).insert(_mentionsOverlay);
+        }
       },
     );
   }
-  }
 
   void _parseExistingMessage(Message message) {
     textEditingController.text = message.text;

pubspec.yaml

@@ -19,10 +19,10 @@ dependencies:
   flutter_markdown: ^0.5.0
   url_launcher: ^5.4.11
   video_player: ^1.0.0
-  chewie: ^0.10.4
+  chewie: ^0.12.0
   file_picker: ^2.0.12
   image_picker: ^0.6.7+2
-  flutter_keyboard_visibility: ^3.3.0
+  flutter_keyboard_visibility: ^4.0.1
   stream_chat: ^0.2.13
   mime: ^0.9.6+3
   visibility_detector: ^0.1.5