Sending Emails

[jesslin02]

• mask emails correctly. currently all being sent from johnsonlongyu@gmail.com
• add functionality for sending test emails to recipients that are not students. currently requires email recipients to have a seating assignment. original seating tool had functionality to send test email to a staff member by selecting a random student/seat assignment to send.
• email sending crashes for >50 recipients

[Reimirno]

For 1 once we have proper setup of smtp server that should be handled.
For 2, we already provide override receiver feature to allow you test email with staff member's inbox.

We have to look into 3.

[Reimirno]

for 3, see #62

Hopefully that should work