Decision: Always send a final email notification when form has been completed

[plocket]

The question was: When should we send the final email notification? The decision was: Always.

Right now it's sent all the time. These are different circumstances. Check off the ones that the email should be sent for.

• [x] The user has at least one codefendant who is signing on their own device.
• [x] The user only has codefendants who are signing on the user's device.
• [x] The user has 0 codefendants.

[mariahjr]

Rationale: We want user to have an email with a link to the interview and this gets them that email.