* Create state for biometric client key halves
* Move enc string util to central utils
* Provide biometric state through service
* Use biometric state to track client key half
* Create migration for client key half
* Ensure client key half is removed on logout
* Remove account data for client key half
* Remove unnecessary key definition likes
* Remove moved state from account
* Fix null-conditional operator failure
* Simplify migration
* Remove lame test
* Fix test type
* Add migrator
* Prefer userKey when legacy not needed
* Fix tests
