Bugs of Encrypt/Decrypt message

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Expected behaviour

1. Decrypt message should give user-friendly error messages like "Verify Message" does, that is to set "Invalid" error message on the field that causes the problem
2. Encrypt/Decrypt message on locked account should work like "Register second passphrase" - There is an initial step to unlock the account.
3. Encrypt/Decrypt message hides the action buttons on success but show them again when I change some of the inputs and want to run again.

Actual behaviour

1. Decrypt message gives ugly errors, like nacl.crypto_box_open expected 24-byte nonce but got length 1
2. Encrypt/Decrypt message doesn't work with locked account nacl_raw._crypto_box_open signalled an error
3. Encrypt/Decrypt message hides the action buttons on success and doesn't show them again when I change some of the inputs and want to run again.