correction d'une double bordure dans les aggregateurs de page

templates/base.html

@@ -17,8 +17,12 @@
   </nav>
   <div class="layout">
     <main class="main-content">{% block content %} {% endblock content %}</main>
-    <aside>{% include "partials/aside.html" %}</aside>
-  </div>
+    {% if page.extra.aside %}
+      <aside>
+        {% include "partials/aside.html" %}
+      </aside>
+    {% endif %}
+    </div>
 </body>
 <footer>
   <small class="footer-text">© <script>document.write(new Date().getFullYear())</script> Hatmos. All Rights Reserved.</small>