Merge remote-tracking branch 'origin/develop' into feat/localization

# Conflicts:
#	packages/stream_chat_flutter/example/lib/main.dart
#	packages/stream_chat_flutter/example/pubspec.yaml
#	packages/stream_chat_flutter/lib/src/channel_bottom_sheet.dart
#	packages/stream_chat_flutter/lib/src/channel_list_view.dart
#	packages/stream_chat_flutter/lib/src/gallery_footer.dart
#	packages/stream_chat_flutter/lib/src/message_input.dart
#	packages/stream_chat_flutter/lib/src/message_list_view.dart
#	packages/stream_chat_flutter/lib/src/user_item.dart

packages/stream_chat_flutter/example/lib/main.dart

@@ -34,84 +34,96 @@ class _HindiStreamChatLocalizationsDelegate
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
-  /// Create a new instance of [StreamChatClient] passing the apikey obtained from your
-  /// project dashboard.
+  /// Create a new instance of [StreamChatClient] passing the apikey obtained
+  /// from your project dashboard.
   final client = StreamChatClient(
     's2dxdhpxd94g',
     logLevel: Level.INFO,
   );
 
-  /// Set the current user and connect the websocket. In a production scenario, this should be done using
-  /// a backend to generate a user token using our server SDK.
+  /// Set the current user and connect the websocket. In a production
+  /// scenario, this should be done using a backend to generate a user token
+  /// using our server SDK.
+  ///
   /// Please see the following for more information:
   /// https://getstream.io/chat/docs/ios_user_setup_and_tokens/
   await client.connectUser(
     User(id: 'super-band-9'),
-    'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoic3VwZXItYmFuZC05In0.0L6lGoeLwkz0aZRUcpZKsvaXtNEDHBcezVTZ0oPq40A',
+    'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoic3VwZXItYmFuZC05In0.'
+    '0L6lGoeLwkz0aZRUcpZKsvaXtNEDHBcezVTZ0oPq40A',
   );
 
   final channel = client.channel('messaging', id: 'godevs');
 
   await channel.watch();
 
-  runApp(MyApp(client, channel));
+  runApp(
+    MyApp(
+      client: client,
+      channel: channel,
+    ),
+  );
 }
 
 /// Example application using Stream Chat Flutter widgets.
-/// Stream Chat Flutter is a set of Flutter widgets which provide full chat functionalities
-/// for building Flutter applications using Stream.
-/// If you'd prefer using minimal wrapper widgets for your app, please see our other
+///
+/// Stream Chat Flutter is a set of Flutter widgets which provide full chat
+/// functionalities for building Flutter applications using Stream. If you'd
+/// prefer using minimal wrapper widgets for your app, please see our other
 /// package, `stream_chat_flutter_core`.
 class MyApp extends StatelessWidget {
+  /// Example using Stream's Flutter package.
+  ///
+  /// If you'd prefer using minimal wrapper widgets for your app, please see
+  /// our other package, `stream_chat_flutter_core`.
+  const MyApp({
+    Key? key,
+    required this.client,
+    required this.channel,
+  }) : super(key: key);
+
   /// Instance of Stream Client.
-  /// Stream's [StreamChatClient] can be used to connect to our servers and set the default
-  /// user for the application. Performing these actions trigger a websocket connection
-  /// allowing for real-time updates.
+  ///
+  /// Stream's [StreamChatClient] can be used to connect to our servers and
+  /// set the default user for the application. Performing these actions
+  /// trigger a websocket connection allowing for real-time updates.
   final StreamChatClient client;
 
   /// Instance of the Channel
   final Channel channel;
 
-  /// Example using Stream's Flutter package.
-  /// If you'd prefer using minimal wrapper widgets for your app, please see our other
-  /// package, `stream_chat_flutter_core`.
-  MyApp(this.client, this.channel);
-
   @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      theme: ThemeData.light(),
-      darkTheme: ThemeData.dark(),
-      themeMode: ThemeMode.system,
-      supportedLocales: [
-        Locale('en', 'US'),
-        Locale('hi', 'IN'),
-      ],
-      localizationsDelegates: [
-        GlobalStreamChatLocalizations.delegate,
-        GlobalCupertinoLocalizations.delegate,
-        GlobalMaterialLocalizations.delegate,
-        GlobalWidgetsLocalizations.delegate,
-        StreamChatLocalizationsHi.delegate,
-      ],
-      builder: (context, widget) {
-        return StreamChat(
+  Widget build(BuildContext context) => MaterialApp(
+        theme: ThemeData.light(),
+        darkTheme: ThemeData.dark(),
+  themeMode: ThemeMode.system,
+  supportedLocales: [
+  Locale('en', 'US'),
+  Locale('hi', 'IN'),
+  ],
+  localizationsDelegates: [
+  GlobalStreamChatLocalizations.delegate,
+  GlobalCupertinoLocalizations.delegate,
+  GlobalMaterialLocalizations.delegate,
+  GlobalWidgetsLocalizations.delegate,
+  StreamChatLocalizationsHi.delegate,
+  ],
+        builder: (context, widget) => StreamChat(
           client: client,
           child: widget,
-        );
-      },
-      home: StreamChannel(
-        channel: channel,
-        child: ChannelPage(),
-      ),
-    );
-  }
+        ),
+        home: StreamChannel(
+          channel: channel,
+          child: const ChannelPage(),
+        ),
+      );
 }
 
 /// A list of messages sent in the current channel.
 ///
-/// This is implemented using [MessageListView], a widget that provides query functionalities
-/// fetching the messages from the api and showing them in a listView
+/// This is implemented using [MessageListView], a widget that provides query
+/// functionalities fetching the messages from the api and showing them in a
+/// listView.
 class ChannelPage extends StatelessWidget {
   /// Creates the page that shows the list of messages
   const ChannelPage({
@@ -119,17 +131,15 @@ class ChannelPage extends StatelessWidget {
   }) : super(key: key);
 
   @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: ChannelHeader(),
-      body: Column(
-        children: <Widget>[
-          Expanded(
-            child: MessageListView(),
-          ),
-          MessageInput(),
-        ],
-      ),
-    );
-  }
+  Widget build(BuildContext context) => Scaffold(
+        appBar: const ChannelHeader(),
+        body: Column(
+          children: const <Widget>[
+            Expanded(
+              child: MessageListView(),
+            ),
+            MessageInput(),
+          ],
+        ),
+      );
 }