fix: defining event hook in edit speaker/session route (#3759)

Author: kushthedude

app/templates/events/view/sessions/edit.hbs

@@ -8,6 +8,7 @@
                                    speakers=model.speakers
                                    fields=model.form
                                    data=model
+                                   event=model.event
                                    save=(action 'save')
                                    isSession=true
                                    speakersDetails=model.session.speakers

app/templates/events/view/speakers/edit.hbs

@@ -4,8 +4,8 @@
       {{t 'Edit Speaker'}}
     </h2>
     <div class="ui container">
-      {{forms/session-speaker-form fields=model.form data=model save=(action 'save') isSpeaker=true
-        includeSpeaker=true isSessionSpeaker=true isLoading=isLoading}}
+      {{forms/session-speaker-form fields=model.form data=model save=(action 'save') event=model.event 
+      isSpeaker=true includeSpeaker=true isSessionSpeaker=true isLoading=isLoading}}
     </div>
   </div>
 </div>