Improvment: Rich text editor for the events description- EXO-73526 (e…

…xoplatform#687)

 - Added rich editor to the event description.
 - Ensured the new formatted description displays correctly when viewed on the platform and in programs after importing the ICS file.
 - Added try-catch block in email notif template to handle cases where the conference variable is not binded to ensure that the template does not throw a MissingPropertyException.

agenda-webapps/src/main/webapp/vue-app/agenda-common/components/event/view/AgendaEventsDetailsBody.vue

@@ -192,6 +192,11 @@ export default {
     };
   },
   computed: {
+  /*  bodyElement() {
+      return {
+        template: this.ExtendedDomPurify.purify(`<div>${this.body}</div>`) || '',
+      };
+    },*/
     connectedConnector() {
       return this.connectors && this.connectors.find(connector => connector.connected);
     },