feat: Add dashboard layout with sidebar and main content area

- Implemented AppFooter widget for mobile and desktop views.
- Created ChildrenSidebar widget to display children's information.
- Developed AppLayout to manage app structure with optional footer.
- Added ChildrenSidebar for selecting children and displaying their status.
- Introduced DashboardAppBar for navigation and user actions.
- Built WMainContentArea for displaying assistant details and calendar.
- Created MainContentArea to manage contracts and events display.
- Implemented MessagingSidebar for messaging functionality.
- Updated widget tests to reflect new structure and imports.

frontend/lib/navigation/app_router.dart

@@ -4,6 +4,8 @@ import 'package:p_tits_pas/screens/auth/am/am_register_step1_sceen.dart';
 import 'package:p_tits_pas/screens/auth/am/am_register_step2_sceen.dart';
 import 'package:p_tits_pas/screens/auth/am/am_register_step3_sceen.dart';
 import 'package:p_tits_pas/screens/auth/am/am_register_step4_sceen.dart';
+import 'package:p_tits_pas/screens/home/parent_screen/ParentDashboardScreen.dart';
+import 'package:p_tits_pas/screens/home/parent_screen/find_nanny.dart';
 import 'package:p_tits_pas/screens/legal/legal_page.dart';
 import 'package:p_tits_pas/screens/legal/privacy_page.dart';
 import '../screens/auth/login_screen.dart';
@@ -13,7 +15,6 @@ import '../screens/auth/parent/parent_register_step2_screen.dart';
 import '../screens/auth/parent/parent_register_step3_screen.dart';
 import '../screens/auth/parent/parent_register_step4_screen.dart';
 import '../screens/auth/parent/parent_register_step5_screen.dart';
-import '../screens/home/home_screen.dart';
 import '../models/parent_user_registration_data.dart';
 
 class AppRouter {
@@ -31,7 +32,8 @@ class AppRouter {
   static const String amRegisterStep2 = '/am-register/step2';
   static const String amRegisterStep3 = '/am-register/step3';
   static const String amRegisterStep4 = '/am-register/step4';
-  static const String home = '/home';
+  static const String parentDashboard = '/parent-dashboard';
+  static const String findNanny = '/find-nanny';
 
   static Route<dynamic> generateRoute(RouteSettings settings) {
     Widget screen;
@@ -119,8 +121,11 @@ class AppRouter {
         }
         slideTransition = true;
         break;
-      case home:
-        screen = const HomeScreen();
+      case parentDashboard:
+        screen = const ParentDashboardScreen();
+        break;
+      case findNanny:
+        screen = const FindNannyScreen();
         break;
       default:
         screen = Scaffold(