feat: global loading overlay

lib/presentation/app_widget.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:loader_overlay/loader_overlay.dart';
 
 import '../application/auth/auth_bloc.dart';
 import '../application/language/language_bloc.dart';
@@ -7,6 +8,7 @@ import '../common/theme/theme.dart';
 import '../common/constant/app_constant.dart';
 import '../injection.dart';
 import '../l10n/app_localizations.dart';
+import 'components/loading/loading_overlay.dart';
 import 'router/app_router.dart';
 import 'router/app_router_observer.dart';
 
@@ -27,20 +29,27 @@ class _AppWidgetState extends State<AppWidget> {
         BlocProvider(create: (context) => getIt<LanguageBloc>()),
         BlocProvider(create: (context) => getIt<AuthBloc>()),
       ],
-      child: BlocBuilder<LanguageBloc, LanguageState>(
-        builder: (context, state) {
-          return MaterialApp.router(
-            debugShowCheckedModeBanner: false,
-            title: AppConstant.appName,
-            locale: state.language.locale,
-            supportedLocales: AppLocalizations.supportedLocales,
-            localizationsDelegates: AppLocalizations.localizationsDelegates,
-            theme: ThemeApp.theme,
-            routerConfig: _appRouter.config(
-              navigatorObservers: () => <NavigatorObserver>[AppRouteObserver()],
-            ),
-          );
-        },
+      child: GlobalLoaderOverlay(
+        useDefaultLoading: false,
+        overlayWidgetBuilder: (progress) => LoadingOverlay(),
+        overlayColor: AppColor.black.withOpacity(0.35),
+        child: BlocBuilder<LanguageBloc, LanguageState>(
+          builder: (context, state) {
+            return MaterialApp.router(
+              debugShowCheckedModeBanner: false,
+              title: AppConstant.appName,
+              locale: state.language.locale,
+              supportedLocales: AppLocalizations.supportedLocales,
+              localizationsDelegates: AppLocalizations.localizationsDelegates,
+              theme: ThemeApp.theme,
+              routerConfig: _appRouter.config(
+                navigatorObservers: () => <NavigatorObserver>[
+                  AppRouteObserver(),
+                ],
+              ),
+            );
+          },
+        ),
       ),
     );
   }