fix btn display on small screen

application/app/Resources/views/base.html.twig

@@ -29,7 +29,8 @@
                 </a>
                 {% if is_granted('ROLE_ADMIN') %}
                     <a class="btn btn-secondary btn-sm" href="{{ path('admin_index') }}">
-                        <i class="fas fa-tools"></i> Administration
+                        <i class="fas fa-tools"></i>
+                          <span class="d-none d-md-inline">Administration</span>
                     </a>
                 {% endif %}
             {% else %}