chore(repo): add lints, update freezed, json_serializable

Signed-off-by: xsahil03x <[email protected]>

packages/stream_chat_flutter/test/src/attachment_actions_modal_test.dart

@@ -75,7 +75,7 @@ void main() {
   );
 
   testWidgets(
-    'it should hide delete if it\'s not my message',
+    "it should hide delete if it's not my message",
     (WidgetTester tester) async {
       final client = MockClient();
       final clientState = MockClientState();
@@ -364,7 +364,7 @@ void main() {
 
   testWidgets(
     // ignore: lines_longer_than_80_chars
-    'tapping on delete in chat should remove the message if that\'s the only attachment and there is no text',
+    "tapping on delete in chat should remove the message if that's the only attachment and there is no text",
     (WidgetTester tester) async {
       final client = MockClient();
       final clientState = MockClientState();

packages/stream_chat_flutter/test/src/gradient_avatar_test.dart

@@ -92,7 +92,7 @@ void main() {
                 width: 100,
                 height: 100,
                 child: StreamGradientAvatar(
-                  name: 'd123@/d de:\$as',
+                  name: r'd123@/d de:$as',
                   userId: 'demo123',
                 ),
               ),
@@ -116,7 +116,7 @@ void main() {
                 width: 100,
                 height: 100,
                 child: StreamGradientAvatar(
-                    name: '123@/d \$as', userId: 'demo123'),
+                    name: r'123@/d $as', userId: 'demo123'),
               ),
             ),
           ),

packages/stream_chat_flutter/test/src/reaction_bubble_test.dart

@@ -60,7 +60,7 @@ void main() {
           client: client,
           streamChatThemeData: StreamChatThemeData.fromTheme(themeData),
           connectivityStream: Stream.value(ConnectivityResult.mobile),
-          child: Container(
+          child: ColoredBox(
             color: Colors.black,
             child: StreamReactionBubble(
               reactions: [
@@ -97,7 +97,7 @@ void main() {
           client: client,
           streamChatThemeData: StreamChatThemeData.fromTheme(themeData),
           connectivityStream: Stream.value(ConnectivityResult.mobile),
-          child: Container(
+          child: ColoredBox(
             color: Colors.black,
             child: StreamReactionBubble(
               reactions: [
@@ -142,7 +142,7 @@ void main() {
           client: client,
           streamChatThemeData: StreamChatThemeData.fromTheme(themeData),
           connectivityStream: Stream.value(ConnectivityResult.mobile),
-          child: Container(
+          child: ColoredBox(
             color: Colors.black,
             child: StreamReactionBubble(
               reactions: [

packages/stream_chat_flutter/test/src/simple_frame.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 
 class SimpleFrame extends StatelessWidget {
-  const SimpleFrame({Key? key, required this.child}) : super(key: key);
+  const SimpleFrame({super.key, required this.child});
 
   final Widget child;