docs(authentication): update example with multiple data sources

packages/wyatt_authentication_bloc/example/lib/presentation/features/app/app.dart

@@ -34,6 +34,9 @@ class App extends StatelessWidget {
       AuthenticationRepositoryImpl(
     authenticationRemoteDataSource:
         getIt<AuthenticationRemoteDataSource<int>>(),
+    authenticationSessionDataSource:
+        getIt<AuthenticationSessionDataSource<int>>(),
+    authenticationCacheDataSource: getIt<AuthenticationCacheDataSource<int>>(),
     customPasswordValidator: const CustomPassword.pure(),
     extraSignUpInputs: [
       FormInput(

packages/wyatt_authentication_bloc/example/lib/presentation/features/sub/sub_page.dart

@@ -45,7 +45,8 @@ class SubPage extends StatelessWidget {
           children: [
             const Text('Another page'),
             ElevatedButton(
-              onPressed: () => context.read<AuthenticationCubit<int>>().delete(),
+              onPressed: () =>
+                  context.read<AuthenticationCubit<int>>().delete(),
               child: const Text('Delete account'),
             ),
           ],