navbar and setting bar is done

lib/screens/holiday_screen.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+
+class HolidayScreen extends StatelessWidget {
+  const HolidayScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Text(
+        'الإجازة',
+        style: TextStyle(
+          color: Colors.white,
+          fontSize: 24,
+          fontWeight: FontWeight.bold,
+        ),
+      ),
+    );
+  }
+}