unify fatal error screens, either with an abstract VC or make both one VC

[tomholub]

This is very similar to the other error screen we have. It should be the same screen and same VC, with a boolean init parameter to offer to reset storage or not.

Originally posted by @tomholub in #1165 (comment)

[tomholub]

[tomholub]

Do we still have more than one fatal error screen?