fix: properly gate menus by role

templates/admin/layout.html.twig

@@ -1,9 +1,9 @@
 {% extends 'layout.html.twig' %}
 
 {% block main_menu %}
-    {{ knp_menu_render(knp_menu_get('admin_main')) }}
+    {{ knp_menu_render(knp_menu_get('default_main')) }}
 {% endblock %}
 
 {% block mobile_menu %}
-    {{ knp_menu_render(knp_menu_get('admin_main')) }}
+    {{ knp_menu_render(knp_menu_get('default_main')) }}
 {% endblock %}