* feat(emergency-access) [PM-29584]: Add email template.
* refactor(emergency-access) [PM-29584]: Move Emergency Access to Auth/UserFeatures.
* refactor(emergency-access) [PM-29584]: Move EmergencyAccess tests to UserFeatures space.
* feat(emergency-access) [PM-29584]: Add compiled EmergencyAccess templates.
* test(emergency-access) [PM-29584]: Add mailer-specific tests.
* refactor(emergency-access) [PM-29584]: Move mail to UserFeatures area.
* feat(emergency-access) [PM-29584]: Update link for help pages, not web vault.
* test(emergency-access) [PM-29584]: Update mail tests for new URL and single responsibility.
* refactor(emergency-access) [PM-29584]: Add comments for added test.