Improve 2FA workflow usability

Add EMAIL_SUBJECT_PREFIX settings to email subject

Update notifications to applicants

Update the transistion notification.

Update the confirmation notification.

Update the new account notification.

Add a extra sass file for easy variable override

Make the form help link text translateble.

Improve the text on the password reset form

Exclude draft submissions from API calls

Add External Review Form block to fund, for external reviewers

Fix e-mail variables that got mangled during the translation push