wip: implement admin crud

templates/layout_admin.html.twig

@@ -17,7 +17,7 @@
                 </div>
             {% endif %}
         </div>
-        <div class="hidden lg:block">
+        <div class="hidden lg:block sticky top-0 h-screen">
             {{ knp_menu_render(knp_menu_get('admin_main')) }}
         </div>
         <div class="lg:col-span-3">
@@ -41,4 +41,5 @@
             </div>
         </div>
     </div>
+    {% include '_partials/_flashes_admin.html.twig' %}
 {% endblock %}