* Onboarding: Invite new users
- Separates the user self-registration and invite cases
- Adds invitation email for users created by the admin
- Adds invitation tokens to verify user was invited
- Adds handler action for invite links
- Refactors `UserEventHostedService`
- Fixes#5726.
* Add permissioned form tag helper
* Better way of changing a user's role
* Test fixes
* updates
* updates
* updates
* updates
* updates
* moves api key CTA to top right
* updates
* more updates
* more updates
* Fix active state when "Account" is selected
* Update wording in subnav: Profile becomes Account
* Fix email test
* Update Emails wording
* Try to fix email test
* Make General first tab in store settings
Co-authored-by: Dennis Reimann <mail@dennisreimann.de>