[DELEGATION] Edit attendance and events, delete event for someone (#553)

* [#523] added way to manage attendance for delegated calendars

* [DELEGATION] #523 & #524 changed eventURL calculation for delegated events to have the rigth one

* [#524] added drag and drop authorisation to delegated event

* [#524] added tests

* [#524] support for the permission access

* [#524] no edit when delegated event is not public

src/components/Calendar/Calendar.tsx

@@ -697,7 +697,8 @@ export default function CalendarApp({
               filteredTempEvents,
               userId,
               userData?.email,
-              isPending
+              isPending,
+              calendars
             )}
             eventOrder={(a: EventApi, b: EventApi) =>
               a.extendedProps.priority - b.extendedProps.priority