fix(doc): fix broken documentation snippets

docusaurus/docs/Flutter/05-guides/03-user_token_generation_with_firebase_auth.mdx

@@ -15,16 +15,16 @@ In this guide, you'll explore how you can use Firebase Auth as an authentication
 generate Stream Chat user tokens.
 
 You will use Stream's [NodeJS client](https://getstream.io/chat/docs/node/?language=javascript) for Stream account creation and
-token generation, and [Flutter Cloud Functions for Firebase](https://firebase.flutter.dev/docs/functions/overview) to invoke the cloud functions
+token generation, and [Flutter Cloud Functions for Firebase](https://firebase.google.com/docs/functions/callable?gen=2nd#dart) to invoke the cloud functions
 from your Flutter app.
 
 Stream supports several different [backend clients](https://getstream.io/chat/sdk/#backend-clients) to integrate with your server. This guide only shows an easy way to integrate Stream Chat authentication using Firebase and Flutter.
 
 ### Flutter Firebase
 
-See the [Flutter Firebase getting started](https://firebase.flutter.dev/docs/overview) docs for setup and installation instructions.
+See the [Flutter Firebase getting started](https://firebase.google.com/docs/flutter/setup) docs for setup and installation instructions.
 
-You will also need to add the [Flutter Firebase Authentication](https://firebase.flutter.dev/docs/auth/overview), and [Flutter Firebase Cloud Functions](https://firebase.flutter.dev/docs/functions/overview) packages to your app. Depending on the platform that you target, there may be specific configurations that you need to do.
+You will also need to add the [Flutter Firebase Authentication](https://firebase.google.com/docs/auth/flutter/start), and [Flutter Firebase Cloud Functions](https://firebase.google.com/docs/functions/callable?gen=2nd#dart) packages to your app. Depending on the platform that you target, there may be specific configurations that you need to do.
 
 #### Starting Code
 
@@ -35,20 +35,20 @@ You will extend this later to execute cloud functions.
 ```dart
 import 'package:cloud_functions/cloud_functions.dart';
 import 'package:firebase_core/firebase_core.dart';
-import 'package:firebase_auth/firebase_auth.dart';
+import 'package:firebase_auth/firebase_auth.dart' as firebase_auth;
 import 'package:flutter/material.dart';
 import 'dart:async';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await Firebase.initializeApp();
-  runApp(MyApp());
+  runApp(const MyApp());
 }
 
 class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
+    return const MaterialApp(
       home: Scaffold(
         body: Auth(),
       ),
@@ -57,20 +57,20 @@ class MyApp extends StatelessWidget {
 }
 
 class Auth extends StatefulWidget {
-  Auth({Key? key}) : super(key: key);
+  const Auth({super.key});
 
   @override
   _AuthState createState() => _AuthState();
 }
 
 class _AuthState extends State<Auth> {
-  late FirebaseAuth auth;
+  late firebase_auth.FirebaseAuth auth;
   late FirebaseFunctions functions;
 
   @override
   void initState() {
     super.initState();
-    auth = FirebaseAuth.instance;
+    auth = firebase_auth.FirebaseAuth.instance;
     functions = FirebaseFunctions.instance;
   }
 
@@ -103,19 +103,26 @@ class _AuthState extends State<Auth> {
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
           AuthenticationState(
-            streamUser: auth.authStateChanges(),
+            streamUser: auth.authStateChanges().map(
+                  (firebaseUser) => firebaseUser != null
+                      ? User(
+                          id: firebaseUser.uid,
+                          // Map other user fields here
+                        )
+                      : null,
+                ),
           ),
           ElevatedButton(
             onPressed: createAccount,
-            child: Text('Create account'),
+            child: const Text('Create account'),
           ),
           ElevatedButton(
             onPressed: signIn,
-            child: Text('Sign in'),
+            child: const Text('Sign in'),
           ),
           ElevatedButton(
             onPressed: signOut,
-            child: Text('Sign out'),
+            child: const Text('Sign out'),
           ),
         ],
       ),
@@ -125,9 +132,9 @@ class _AuthState extends State<Auth> {
 
 class AuthenticationState extends StatelessWidget {
   const AuthenticationState({
-    Key? key,
+    super.key,
     required this.streamUser,
-  }) : super(key: key);
+  });
 
   final Stream<User?> streamUser;
 
@@ -138,10 +145,10 @@ class AuthenticationState extends StatelessWidget {
       builder: (context, snapshot) {
         if (snapshot.hasData) {
           return (snapshot.data != null)
-              ? Text('Authenticated')
-              : Text('Not Authenticated');
+              ? const Text('Authenticated')
+              : const Text('Not Authenticated');
         }
-        return Text('Not Authenticated');
+        return const Text('Not Authenticated');
       },
     );
   }
@@ -158,8 +165,8 @@ in the `createAccount`, `signIn` and `signOut` methods. There is a button to inv
 
 The `FirebaseFunctions.instance` will be used later in this guide.
 
-The `AuthenticationState` widget listens to `auth.authStateChanges()` to display a message
-indicating if a user is authenticated.
+The `AuthenticationState`` widget listens to `auth.authStateChanges()` (mapped to Stream's `User`) 
+to display a message indicating if a user is authenticated.
 
 ### Firebase Cloud Functions
 
@@ -168,7 +175,7 @@ Firebase Cloud Functions allows you to extend Firebase with custom operations th
 - **External event**: For example, directly calling a cloud function from your Flutter application.
 
 To set up your local environment to deploy cloud functions, please see the
-[Cloud Functions getting started](https://firebase.flutter.dev/docs/overview) docs.
+[Cloud Functions getting started](https://firebase.google.com/docs/flutter/setup) docs.
 
 After initializing your project with cloud functions, you should have a **functions** folder in your project, including a `package.json` file.
 

docusaurus/docs/Flutter/05-guides/04-adding_localization.mdx

@@ -61,6 +61,10 @@ void main() {
 }
 
 class MyApp extends StatelessWidget {
+
+  // Setup client and channel code here
+  ...
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(

docusaurus/docs/Flutter/05-guides/05-push-notifications/adding_push_notifications_v2.mdx

@@ -208,9 +208,9 @@ void handleNotification(
 
     flutterLocalNotificationsPlugin.show(
       1,
-      'New message from ${response.message.user.name} in ${response.channel.name}',
+      'New message from ${response.message.user!.name} in ${response.channel!.name}',
       response.message.text,
-      NotificationDetails(
+      const NotificationDetails(
           android: AndroidNotificationDetails(
         'new_message',
         'New message notifications channel',
@@ -255,7 +255,7 @@ Make sure to read the [general push notification docs](https://getstream.io/chat
 If you're not sure whether you've set up push notifications correctly, for example, you don't always receive them, or they don’t work reliably, then you can follow these steps to make sure your configuration is correct and working:
 
 1. Clone our repository for push testing: `git clone [email protected]:GetStream/chat-push-test.git`
-2. `cd flutter`
+2. `cd chat-push-test/flutter`
 3. In that folder run `flutter pub get`
 4. Input your API key and secret in `lib/main.dart`
 5. Change the bundle identifier/application ID and development team/user so you can run the app on your physical device.**Do not** run on an iOS simulator, as it will not work. Testing on an Android emulator is fine.