added setting to limit the maximum length of a timesheet record (#2612)

templates/user/stats.html.twig

@@ -177,6 +177,10 @@
             <span data-toggle="tooltip" title="{{ 'label.id'|trans }}: {{ user.id }}">{{ 'profile.about_me'|trans }}</span>
         {% endblock %}
         {% block box_body %}
+            <p>
+                <strong>{{ 'label.username'|trans }}</strong><br>
+                {{ user.username }}
+            </p>
             <p>
                 <strong>{{ 'profile.first_entry'|trans }}</strong><br>
                 {# FIXME use a configuration for it #}