add sidebar toggle button

core/admin/mailu/ui/static/app.css

@@ -8,3 +8,15 @@
   overflow: hidden;
   text-overflow: ellipsis;
 }
+
+.sidebar-collapse .sidebar h4 {
+  display: none !important;
+}
+
+.logo a {
+  color: #fff;
+}
+
+.sidebar-toggle {
+  padding: unset !important;
+}

core/admin/mailu/ui/templates/base.html

@@ -23,7 +23,7 @@
 {% block scripts %}
 {{super()}}
 <script src="{{ url_for('.static', filename='select2/js/select2.min.js') }}"></script>
-<script src="{{ url_for('.static', filename='adminlte/js/app.min.js') }}"></script>
+<script src="{{ url_for('.static', filename='adminlte/js/adminlte.min.js') }}"></script>
 {% endblock %}
 {% endblock %}
 
@@ -35,9 +35,14 @@ class="hold-transition skin-blue sidebar-mini"
   <div class="wrapper">
     {% block navbar %}
     <header class="main-header">
-      <a href="{{ config["WEB_ADMIN"] }}" class="logo">
+      <div class="logo">
-        <span class="logo-lg">{{ config["SITENAME"] }}</span>
+        <a href="#" class="sidebar-toggle" data-toggle="push-menu" role="button">
-      </a>
+          <span class="sr-only">Toggle navigation</span>
+        </a>
+        <a href="{{ config["WEB_ADMIN"] }}">
+          <span class="logo-lg">{{ config["SITENAME"] }}</span>
+        </a>
+      </div>
     </header>
     <aside class="main-sidebar">
       {% block sidebar %}

core/admin/mailu/ui/templates/sidebar.html

@@ -3,7 +3,7 @@
   <h4 class="text-center text-primary">{{ current_user }}</h4>
   {% endif %}
 
-  <ul class="sidebar-menu">
+  <ul class="sidebar-menu" data-widget="tree">
     {% if current_user.is_authenticated %}
     <li class="header">{% trans %}My account{% endtrans %}</li>
     <li>

towncrier/newsfragments/988.feature

@@ -0,0 +1 @@
+Add sidebar toggle