[accounts][templates] hide supervision management if no supervisee/supervisee request

beat/web/accounts/templates/accounts/settings.html

@@ -280,6 +280,7 @@
 </div>
 
 {% else %}
+{% if supervisiontracks_pending|length > 0 or supervisiontracks_valid|length > 0 %}
 <div class="row">
 
   <div class="col-sm-6 col-sm-offset-1">
@@ -369,6 +370,7 @@ You can remind them to revalidate there account before the expiration date or el
   </div>
 </div>
 
+{% endif %}
 {% endif %}
 
 {% change_supervisor "change_supervisor" %}