* Update template names
* Add verifier that we can use to start verify process
* Use userVerifier when verifying email on update
* Add tests
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Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>
* Move errors to error file
* Move check for both empty username and email to user service
* Move check for empty email and username to user service Update
* Wrap inner error
* Set username in test
