update and simplify members

fet2020/templates/members/partials/_jobs_side_bar.html

@@ -0,0 +1,15 @@
+<li class="{% if job.slug in request.path %}active{% endif %}">
+    <a href="{% url 'jobs' job.slug %}">{{ job.name }}</a>
+</li>
+
+{% if job.slug == active_job_group.slug %}
+    {% regroup job_members by job.name as all_jobmem_list %}
+
+    <ul id="scrollspy-subNav">
+        {% for jobmem in all_jobmem_list %}
+            <li class="{% if jobmem.grouper %}active{% endif %}">
+                <a href="#{{ jobmem.list.0.job.slug }}">{{ jobmem.grouper }}</a>
+            </li>
+        {% endfor %}
+    </ul>
+{% endif %}