add booking appbar widget

lib/features/booking_system/presentation/widgets/booking_appbar_widget.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+
+import '../../../../utils/resource_manager/color_manager.dart';
+
+class BookingAppBar extends StatelessWidget implements PreferredSizeWidget {
+  const BookingAppBar({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return AppBar(
+      backgroundColor: Colors.transparent,
+      centerTitle: true,
+      leading: IconButton(
+          onPressed: () => Navigator.pop(context),
+          icon: Icon(Icons.arrow_back_ios_new)),
+      title: Text(
+        'Booking',
+        style: TextStyle(
+          color: ColorsManager.blueColor1,
+          fontSize: 15,
+          fontWeight: FontWeight.bold,
+        ),
+      ),
+    );
+  }
+
+  @override
+  Size get preferredSize => const Size.fromHeight(kToolbarHeight);
+}