feat: make event description inline editable

Author: themightychris

html-templates/events/event.tpl

@@ -57,7 +57,18 @@
     <div class="row">
         <div class="col-md-9">
             {if $Event->Description}
-                <div class="content-markdown event-description well">{$Event->Description|escape|markdown}</div>
+                <div
+                    class="content-markdown event-description well content-editable"
+                    {if $.User->hasAccountLevel('Staff')}
+                        data-content-endpoint="/events"
+                        data-content-id="{$Event->Handle}"
+                        data-content-field="Description"
+                        data-content-value="{$Event->Description|escape}"
+                        data-content-renderer="markdown"
+                    {/if}
+                >
+                    {$Event->Description|escape|markdown}
+                </div>
             {/if}
 
             {if $Event->Segments}