Self-Review Email (to supervisor/PDL and reviewers) - Send in MJML format

[Luch76]

When a self-review is completed, two emails are sent out. An email is sent to the reviewee's PDL and supervisor using method FeedbackRequestServicesImpl.sendSelfReviewCompletionEmailToPdlAndSupervisor and to the reviewers using method: FeedbackRequestServicesImpl.sendSelfReviewCompletionEmailToReviewers

Modify these emails so they are sent in MJML format.

Reference:
https://github.com/mjmlio/mjml
https://mjml.io/api

[mkimberlin]

mjmltemplates.zip

[ocielliottc]

@mkimberlin Currently, an email is sent to the pdl and supervisor. There is only a supervisor template. Should the pdl still receive an email? If so, use the supervisor template?

[mkimberlin]

Adjust to just send to the supervisor please.