Update templates to reflect changes to activity type to action

opentech/apply/activity/templates/activity/include/action_list.html

+{% for action in actions %}
+<div>
+    <p>{{ action.timestamp }}</p>
+    <p>{{ action.user }}</p>
+    <p>{{ action.message }}</p>
+</div>
+{% endfor %}

opentech/apply/activity/templates/activity/include/activity_list.html

-{% for event in activity %}
-<div>
-    <p>{{ event.timestamp }}</p>
-    <p>{{ event.user }}</p>
-    <p>{{ event.message }}</p>
-</div>
-{% endfor %}

opentech/apply/funds/templates/funds/applicationsubmission_detail.html

@@ -62,7 +62,7 @@
             {% endif %}
             {% include "activity/include/comment_form.html" %}
             {% include "activity/include/comment_list.html" %}
-            {% include "activity/include/activity_list.html" %}
+            {% include "activity/include/action_list.html" %}
         </aside>
     </div>
 </div>