Switch magic flexy rigboard layout to use *container* width queries rather than *screen* width queries

This resolves the overflow seen in the profile detail view in the most overkill way possible. Nerf this!

RIGS/templates/event_archive.html

@@ -46,7 +46,7 @@
     </div>
 </div>
 <div class="row">
-    <div class="col-sm-12">
+    <div class="col-sm-12" style="container-type: inline-size;">
         {% with object_list as events %}
             {% include 'partials/event_table.html' %}
         {% endwith %}