## Description
General fixes to the email domain features
Changes made:
- Add "email" validation for "Reply-To email" fields
- Fix issue where you can't remove the "Reply-To" email after it's set
- Fix issue where setting the "Sender email" back to Documenso would
still send using the org/team pref
The resend document API was not working correctly when filtering
recipients. The query was filtering recipients at the database level,
which could result in an empty recipients array being returned even when
the document had recipients. This prevented the API from properly
identifying which recipients needed reminder emails.
