public ClientRepository()
 {
     ClientDB = new ClientBookingContext() ?? throw new ArgumentNullException(nameof(ClientDB));
 }
 public BookingAdressRepository()
 {
     BookingAdressDB = new ClientBookingContext() ?? throw new ArgumentNullException(nameof(BookingAdressDB));
 }
 public EmailLogRepository()
 {
     EmailLogDB = new ClientBookingContext() ?? throw new ArgumentNullException(nameof(EmailLogDB));
 }