back button.

lib/presentation/routes/drawer_routes/custom_drawer_routes.dart

@@ -128,6 +128,16 @@ class _BaseScaffoldState extends State<BaseScaffold> {
           //   icon: Icon(Icons.share),
           // ),
           IconButton(onPressed: () {}, icon: Icon(Icons.toggle_off_outlined)),
+          if (widget.showBackIcon)
+            Builder(
+              builder: (context) => IconButton(
+                padding: EdgeInsets.zero,
+                icon: const Icon(Icons.menu),
+                onPressed: () {
+                  Scaffold.of(context).openDrawer(); // Opens the drawer
+                },
+              ),
+            ),
         ],
       ),
       drawer: Drawer(