Use Mina_user_error for daemon bootup failures

[mrmr1993]

This PR converts the configuration errors that users may see during startup to use Mina_user_error. This gives us consistent pretty-printing for them all.

Notes:

• Several of these come from the Secrets library; I have reworked the errors there to have a more consistent format, to always identify which key-type the error is for, and to use Mina_user_error.
• There is some additional error handling in a few places where we could have encountered an exception without handling it.
• The Mina_user_error.Mina_user_error exception registers a printer so that the message is pretty-printed even when it is emitted outside of the daemon command (e.g. some of the Secrets errors may appear in accounts commands).

Checklist:

• Document code purpose, how to use it
  • Mention expected invariants, implicit constraints
• Tests were added for the new behavior
  • Document test purpose, significance of failures
  • Test names should reflect their purpose
• All tests pass (CI will check this if you didn't)
• Serialized types are in stable-versioned modules
• Does this close issues? List them:

[nholland94]

👍