email notifications fix

[davidsmejia]

Issue Number

N/A

Purpose/Implementation Notes

• Moves email templates into templates/email
• Adds test to confirm templates can be rendered correctly
• moves ses to be instantiated in the notification function call so we can mock it in tests

Types of changes

• Bugfix (non-breaking change which fixes an issue)

Functional tests

N/A

Checklist

• Lint and unit tests pass locally with my changes

Screenshots

N/A