* fixes
* saving workspaceMemberId and personId when saving attendees
* add typing
* use Map
* improve saveMessageParticipants
* fix role type
* move logic in a service
* create new service
* use new service in calendar-event-attendee.service
* modify service to include more common logic
* add defaumt value to isOrganizer in calendar-event-attendee.object-metadata
* rename folder
* renaming
68977dc675