Initial work at coercing activity feed into showing RAs

Also shows Asset/Supplier on the homepage feed.

RIGS/templates/partials/event_status.html

@@ -9,7 +9,7 @@
     {% endif %}
     <!-- TODO show invoice stuff here -->
 
-    {% if event.risk_assessment_edit_url %}
+    {% if event.riskassessment %}
         <span class="badge badge-success">RA: <i class="fas fa-check"></i></span>
     {% else %}
         <span class="badge badge-danger">RA: <i class="fas fa-times"></i></span>