In manager adapt greetings to type of user

src/authentic2_pratic/templates/authentic2_pratic/homepage.html

@@ -1,6 +1,14 @@
 {% extends "authentic2/manager/homepage.html" %}
 {% load i18n %}
 
+{% block appbar %}
+  {% if user.is_superuser %}
+  <p>{% blocktrans %}Here you can manage collectivities and services.{% endblocktrans %}</p>
+  {% else %}
+  <p>{% blocktrans %}Here you can manage users, services and their accesses.{% endblocktrans %}</p>
+  {% endif %}
+{% endblock %}
+
 {% block content %}
   <div id="content">
      {% if user.is_superuser %}