Fix HTML syntax. Closes #32.

biscuit/core/templates/bootstrap4-navbar.html

@@ -13,13 +13,13 @@
         <a class="nav-link dropdown-toggle" data-toggle="dropdown" id="navbarDropdown" aria-expanded="false" role="button" aria-haspopup="true" href="#">
          {{ item.name }}
         </a>
-        {% for menu in item.submenu %}
         <div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdown">
+        {% for menu in item.submenu %}
          <a class="dropdown-item" href="{{ menu.url }}">
           {{ menu.name }}
          </a>
+        {% endfor %}
         </div>
-       {% endfor %}
        </li>
       {% endif %}
      {% endfor %}