Emergency bug patch by @armandofox notified by customer.

Add &. safe call when dereferncing an event time, in case it is blank, to views/announcements/index
I will also cherry-pick this to main, but not sure if safe to deploy from main at this time, so i'll deploy to heroku from this branch until main is declared clean

Author: armandofox

app/views/announcements/index.html.erb

@@ -55,7 +55,7 @@
       <p class="fw-lighter small m-0" style="line-height: 2;"><small>Posted by <%= announcement.audience %> </small></p>
       <p class="m-0" style="line-height: 1;">
         <small>
-          <b> Event Date: </b> <%= announcement.eventtime.strftime("%Y-%m-%d %I:%M %p %Z") %> <br>
+          <b> Event Date: </b> <%= announcement.eventtime&.strftime("%Y-%m-%d %I:%M %p %Z") %> <br>
           <b> Event Location: </b> <%= announcement.location %>
         </small>
       </p>