Le menu de la page principale après s'être authentifié est ok

lib/presentation/widgets/custom_appbar.dart

@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+
+class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
+  final String title;
+  final List<Widget> actions;
+
+  const CustomAppBar({
+    Key? key,
+    required this.title,
+    this.actions = const [],
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return AppBar(
+      backgroundColor: Colors.black,
+      title: Text(
+        title,
+        style: const TextStyle(
+          color: Colors.white,
+          fontWeight: FontWeight.bold,
+        ),
+      ),
+      actions: actions,
+    );
+  }
+
+  @override
+  Size get preferredSize => const Size.fromHeight(56.0);
+}