save config for advanced options

lib/src/channel_preview.dart

@@ -104,7 +104,7 @@ class ChannelPreview extends StatelessWidget {
                                         .isAfter(channel
                                             .state.lastMessage.createdAt))
                                     .length ==
-                                (channel.memberCount ?? 0) - 1,
+                                (channel.memberCount ?? 0),
                           ),
                         );
                       }

lib/src/message_widget.dart

@@ -426,12 +426,13 @@ class _MessageWidgetState extends State<MessageWidget> {
           top: 0,
           child: Material(
             color: Colors.white,
+            clipBehavior: Clip.antiAlias,
             shape: CircleBorder(),
             child: Padding(
               padding: const EdgeInsets.all(1.0),
               child: UserAvatar(
                 user: e.user,
-                constraints: BoxConstraints.loose(Size.fromRadius(16)),
+                constraints: BoxConstraints.loose(Size.fromRadius(8)),
                 showOnlineStatus: false,
               ),
             ),

lib/src/user_avatar.dart

@@ -40,6 +40,7 @@ class UserAvatar extends StatelessWidget {
     final streamChatTheme = StreamChatTheme.of(context);
 
     Widget avatar = ClipRRect(
+      clipBehavior: Clip.antiAlias,
       borderRadius: borderRadius ??
           streamChatTheme.ownMessageTheme.avatarTheme.borderRadius,
       child: Container(