when admin is changing users emails check if its avaiable and remove old email of user first
upgrade script to cleanup email:uid, email:sorted, will remove entries if user doesn't exist or doesn't have email or if entry in user hash doesn't match entry in email:uid
fix missing ! in email interstitial
fix missing await in canSendValidation,
fix broken tests
dont pass sessionId to email.remove if admin is changing/removing email
* breaking: remove `SocketUser.emailConfirm`, re: #10954
* chore: move email confirmation related configs to own section in Settings > Email
* feat: new user email method `getValidationExpiry`, returns expiration in ms.. probably.
* fix: bug where `user.email.isValidationPending` returned an u nexpected non-boolean value if there was no confirmation pending (only when checking email as well)
* fix: update getValidationExpiry to return ms
* test: use emailConfirmInterval for tests, for now
* fix: throw friendly error when attempting an email change within email confirmation window
* feat: new config option `emailConfirmExpiry` in days, governs how long the confirm link is good for
* test: additional tests for user email methods
* fix: add back missing handling of option
* test: fix tests
