backend.njk: add breadcrumb and improve title

views/backend/index.njk

@@ -1,23 +1,25 @@
 {% extends 'layouts/base.njk' %}
 
-{% set title = app.name + ' - Backend' %}
+{% set title = app.name + ' backend' %}
 
 {% block body %}
-    <h1>App administration</h1>
-
     <div class="container">
+        {{ macros.breadcrumb('Backend') }}
+
+        <h1>App administration</h1>
+
         <div class="panel">
             <nav>
                 <ul>
                     {% for element in menu %}
-                    <li>
-                        <a href="{{ element.link }}">
-                            {% if element.display_icon !== null %}
-                                <i data-feather="{{ element.display_icon }}"></i>
-                            {% endif %}
-                            {{ element.display_string }}
-                        </a>
-                    </li>
+                        <li>
+                            <a href="{{ element.link }}">
+                                {% if element.display_icon !== null %}
+                                    <i data-feather="{{ element.display_icon }}"></i>
+                                {% endif %}
+                                {{ element.display_string }}
+                            </a>
+                        </li>
                     {% endfor %}
                 </ul>
             </nav>