Check reminder and follow up email status on execution

[Željan Topić]

Schedule reminder and follow up emails regardless of the appointment status and check if it should be sent before it is sent. This will centralize the status handling.

[Željan Topić]

https://bookingwp.com/forums/topic/reminder-emails-not-sending/

[Tonyl]

Thank you Zeljian, hope this to be enhanced soon.