display a different user icon depending on permissions

probably a work in progress, but could be informative

ippisite/ippidb/templates/base.html

@@ -43,8 +43,8 @@
         </div>
         <nav class="fixed-top">
             <ul class="nav justify-content-end">
-                {% if user.is_authenticated %}{{ user.perms }}
-                    <li><i class="fas fa-user-circle"></i> {{ user.username }}<a class="ml-2" href="{% url 'logout' %}">logout</a></li>
+                {% if user.is_authenticated %}
+                    <li><i class="fas {% if user.is_superuser %}fa-user-shield{% elif perms.ippidb.add_contribution %}fa-user-graduate{% else %}fa-user-circle{% endif %}"></i> {{ user.username }}<a class="ml-2" href="{% url 'logout' %}">logout</a></li>
                 {% else %}
                     <li><a href="/accounts/login/"><i class="fas fa-user-circle mr-2" title="Login"></i> LOGIN</a></li>
                 {% endif %}