togglePresence method
Toggles MyUser.presence between UserPresence.present and UserPresence.away.
Implementation
Future<void> togglePresence() async {
final UserPresence presence = switch (myUser.value?.presence) {
UserPresence.present => UserPresence.away,
UserPresence.away => UserPresence.present,
(_) => UserPresence.present,
};
await _myUserService.updateUserPresence(presence);
}