tidy formating

atlas/templates/atlas/collection_headers.html

@@ -1,5 +1,5 @@
 {% if request.user.is_authenticated and collection %}
-<nav class="navbar navbar-expand-lg navbar-dark bg-dark mt-2 rounded">
+    <nav class="navbar navbar-expand-lg navbar-dark bg-dark mt-2 rounded">
         <div class="container-fluid px-3">
             <span class="navbar-text me-3 text-white">
                 <strong>Collection:</strong> {{ collection.name }}
@@ -41,6 +41,6 @@
                 </ul>
             </div>
         </div>
-</nav>
+    </nav>
 {% endif %}