When a credential is corrupted in keychain, allow the user to reset the stored data

[marcosnav]

Issue stemmed up from Slack conversation:
https://positpbc.slack.com/archives/C06B0UZKT34/p1734380016863249

Investigations point out that the Gnome Keyring provides some data, although the credentials record cannot be found by the user, the corrupted credential error is instantiated only if there is a record to go through.