Beans created by EmailSendingScheduleAutoConfiguration should have explicit names

[gorbunkov]

Otherwise when both IMAP and Email add-ons are included to the project, the application fails with the exception:

The bean 'emailSendingTrigger', defined in class path resource [io/jmix/autoconfigure/imap/ImapSyncScheduleAutoConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [io/jmix/autoconfigure/email/EmailSendingScheduleAutoConfiguration.class] and overriding is disabled.