Better UX around password and hash errors

[jsjoeio]

Problem:

If there is a problem with the password/hash combination, we don't surface that to the user.

Solution:
Account for the following scenarios:

• bad hash — password and hash don't match
• unable to hash — invalid hash (like missing "$"), right?
• ? diff hashing algorithm — expected hash from sha256 but got argon2?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no activity occurs in the next 5 days.