Add automated feedback form emails for every group of participant

[james7132]

We're already tracking each group of participant (attendee, volunteer, staff, performer, panelist, etc.), so sending out targeted emails based on what the participant did at the event, using the questions submitted by each department in #14 would be helpful over just pinging the group in Discord and hoping they respond or blasting out the attendee feedback form to the public, including those who didn't attend the event.

[7cff]

If we switch to ZeptoMail, we would need an additional provider to utilize for bulk emails since that would be the type of email a feedback form request would be. Ubersystem would also need changes to handle possible different/same providers and the two types of mail.