dashboard: fix group detail js functions

circle/dashboard/templates/dashboard/group-detail.html

 {% extends "dashboard/base.html" %}
 {% load crispy_forms_tags %}
 {% load i18n %}
+{% load static %}
 
 {% block title-page %}{{ group.name }} | {% trans "group" %}{% endblock %}
 
@@ -163,3 +164,7 @@
   </div>
 </div>
 {% endblock %}
+
+{% block extra_js %}
+  <script type="text/javascript" src="{% static "dashboard/group-details.js" %}"></script>
+{% endblock %}