update examples

packages/stream_chat_flutter/example/lib/split_view.dart

@@ -93,11 +93,10 @@ class ChannelListPage extends StatelessWidget {
                   onTap(channel);
                 }
               : null,
-          filter: {
+          filter: Filter.in_(
-            'members': {
+            'members',
-              '\$in': [StreamChat.of(context).user.id],
+            [StreamChat.of(context).user.id],
-            }
+          ),
-          },
           sort: [SortOption('last_message_at')],
           pagination: PaginationParams(
             limit: 20,

packages/stream_chat_flutter/example/lib/tutorial-part-2.dart

@@ -56,11 +56,10 @@ class ChannelListPage extends StatelessWidget {
     return Scaffold(
       body: ChannelsBloc(
         child: ChannelListView(
-          filter: {
+          filter: Filter.in_(
-            // 'members': {
+            'members',
-            //   '\$in': [StreamChat.of(context).user.id],
+            [StreamChat.of(context).user.id],
-            // }
+          ),
-          },
           sort: [SortOption('last_message_at')],
           pagination: PaginationParams(
             limit: 20,

packages/stream_chat_flutter/example/lib/tutorial-part-3.dart

@@ -57,11 +57,10 @@ class ChannelListPage extends StatelessWidget {
     return Scaffold(
       body: ChannelsBloc(
         child: ChannelListView(
-          filter: {
+          filter: Filter.in_(
-            'members': {
+            'members',
-              '\$in': [StreamChat.of(context).user.id],
+            [StreamChat.of(context).user.id],
-            }
+          ),
-          },
           channelPreviewBuilder: _channelPreviewBuilder,
           // sort: [SortOption('last_message_at')],
           pagination: PaginationParams(

packages/stream_chat_flutter/example/lib/tutorial-part-4.dart

@@ -49,11 +49,10 @@ class ChannelListPage extends StatelessWidget {
     return Scaffold(
       body: ChannelsBloc(
         child: ChannelListView(
-          filter: {
+          filter: Filter.in_(
-            'members': {
+            'members',
-              '\$in': [StreamChat.of(context).user.id],
+            [StreamChat.of(context).user.id],
-            }
+          ),
-          },
           sort: [SortOption('last_message_at')],
           pagination: PaginationParams(
             limit: 20,

packages/stream_chat_flutter/example/lib/tutorial-part-5.dart

@@ -52,11 +52,10 @@ class ChannelListPage extends StatelessWidget {
     return Scaffold(
       body: ChannelsBloc(
         child: ChannelListView(
-          filter: {
+          filter: Filter.in_(
-            'members': {
+            'members',
-              '\$in': [StreamChat.of(context).user.id],
+            [StreamChat.of(context).user.id],
-            }
+          ),
-          },
           sort: [SortOption('last_message_at')],
           pagination: PaginationParams(
             limit: 20,

packages/stream_chat_flutter/example/lib/tutorial-part-6.dart

@@ -80,11 +80,10 @@ class ChannelListPage extends StatelessWidget {
     return Scaffold(
       body: ChannelsBloc(
         child: ChannelListView(
-          filter: {
+          filter: Filter.in_(
-            'members': {
+            'members',
-              '\$in': [StreamChat.of(context).user.id],
+            [StreamChat.of(context).user.id],
-            }
+          ),
-          },
           sort: [SortOption('last_message_at')],
           pagination: PaginationParams(
             limit: 20,