Merge pull request FilledStacks#80 from Raptor121-SA/patch-1

Update navigation_bar_mobile.dart

Author: FilledStacks

034-flutter-web-part3-template-layouts/lib/widgets/navigation_bar/navigation_bar_mobile.dart

@@ -14,7 +14,9 @@ class NavigationBarMobile extends StatelessWidget {
         children: <Widget>[
           IconButton(
             icon: Icon(Icons.menu),
-            onPressed: () {},
+            onPressed: () {
+            Scaffold.of(context).openDrawer(),
+            },
           ),
           NavBarLogo()
         ],