solved a couple of analysis issues

packages/stream_chat_flutter/lib/src/channel_bottom_sheet.dart

@@ -209,7 +209,7 @@ class _ChannelBottomSheetState extends State<ChannelBottomSheet> {
     );
   }
 
-  void _showDeleteDialog() async {
+  Future<void> _showDeleteDialog() async {
     final res = await showConfirmationDialog(
       context,
       title: 'Delete Conversation',
@@ -227,7 +227,7 @@ class _ChannelBottomSheetState extends State<ChannelBottomSheet> {
     }
   }
 
-  void _showLeaveDialog() async {
+  Future<void> _showLeaveDialog() async {
     final res = await showConfirmationDialog(
       context,
       title: 'Leave conversation',

packages/stream_chat_flutter/lib/src/compress_video_service.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+
 import 'package:synchronized/synchronized.dart';
 import 'package:video_compress/video_compress.dart';
 
@@ -16,5 +17,5 @@ class ICompressVideoService {
   }
 }
 
-ICompressVideoService get CompressVideoService =>
+ICompressVideoService get compressVideoService =>
     ICompressVideoService.instance;

packages/stream_chat_flutter/lib/src/media_list_view.dart

@@ -158,7 +158,7 @@ class _MediaListViewState extends State<MediaListView> {
 
     final media = await assetList.getAssetListPaged(_currentPage, 50);
 
-    if (!media.isEmpty) {
+    if (media.isNotEmpty) {
       setState(() {
         _media.addAll(media);
       });

packages/stream_chat_flutter/lib/src/message_input.dart

@@ -13,13 +13,13 @@ import 'package:http_parser/http_parser.dart' as httpParser;
 import 'package:image_picker/image_picker.dart';
 import 'package:mime/mime.dart';
 import 'package:photo_manager/photo_manager.dart';
-import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
 import 'package:stream_chat_flutter/src/compress_video_service.dart';
 import 'package:stream_chat_flutter/src/media_list_view.dart';
 import 'package:stream_chat_flutter/src/message_list_view.dart';
 import 'package:stream_chat_flutter/src/stream_chat_theme.dart';
 import 'package:stream_chat_flutter/src/stream_svg_icon.dart';
 import 'package:stream_chat_flutter/src/user_avatar.dart';
+import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
 import 'package:substring_highlight/substring_highlight.dart';
 import 'package:video_compress/video_compress.dart';
 
@@ -1040,7 +1040,7 @@ class MessageInputState extends State<MessageInput> {
 
       if (file.size > _kMaxAttachmentSize) {
         if (medium?.type == AssetType.video) {
-          final mediaInfo = await CompressVideoService.compressVideo(file.path);
+          final mediaInfo = await compressVideoService.compressVideo(file.path);
 
           if (mediaInfo.filesize / (1024 * 1024) > _kMaxAttachmentSize) {
             _showErrorAlert(
@@ -1999,7 +1999,7 @@ class MessageInputState extends State<MessageInput> {
 
     if (file.size / 1024 > _kMaxAttachmentSize) {
       if (attachmentType == 'video') {
-        final mediaInfo = await CompressVideoService.compressVideo(file.path);
+        final mediaInfo = await compressVideoService.compressVideo(file.path);
         file = PlatformFile(
           name: mediaInfo.title,
           size: (mediaInfo.filesize / 1024).ceil(),
@@ -2424,5 +2424,12 @@ class Tuple2<T1, T2> {
 
   @override
   bool operator ==(Object other) =>
-      other is Tuple2 && other.item1 == item1 && other.item2 == item2;
+      identical(this, other) ||
+      other is Tuple2 &&
+          runtimeType == other.runtimeType &&
+          item1 == other.item1 &&
+          item2 == other.item2;
+
+  @override
+  int get hashCode => item1.hashCode ^ item2.hashCode;
 }

packages/stream_chat_flutter/lib/src/message_text.dart

@@ -68,7 +68,7 @@ class MessageText extends StatelessWidget {
   String _replaceMentions(String text) {
     message.mentionedUsers?.map((u) => u.name)?.toSet()?.forEach((userName) {
       text = text.replaceAll(
-          '@${userName}', '[@${userName}](@${userName.replaceAll(' ', '')})');
+          '@$userName', '[@$userName](@${userName.replaceAll(' ', '')})');
     });
     return text;
   }