add optional impersonate feature (if firewall option switch_user is true)

Resources/views/User/index.html.twig

@@ -27,6 +27,14 @@
                     <li>
                         <a href="{{ path('admin_user_edit_password',  { 'id' : entity.id }) }}">{{ 'Edit password'|trans }}</a>
                     </li>
+
+                    {% if is_granted('ROLE_ALLOWED_TO_SWITCH') %}
+                        <li>
+                            <a href="{{ path('chill_main_homepage', {'_switch_user': entity.username }) }}">
+                                {{ 'Impersonate'|trans }}
+                            </a>
+                        </li>
+                    {% endif %}
                 </ul>
                 </td>
             </tr>
@@ -34,11 +42,12 @@
         </tbody>
     </table>
 
-        <ul>
+    <ul>
         <li>
             <a href="{{ path('admin_user_new') }}">
                 {{ 'Add a new user'|trans|capitalize  }}
             </a>
         </li>
     </ul>
+
 {% endblock admin_content %}