Test error message: "Confirmation should not be hidden for credentials" can be improved

When running the tests, if a password widget has:

```
"options": {
"hideConfirmation": true
},
```

You will see this failure message:

```
Confirmation should not be hidden for credentials
```

I suggest we change the message to

```
"hideConfirmation" must not be true for credentials.
```

This is more searchable in the template itself.

Search the repository for the exact message "Confirmation should not be hidden for credentials" and inspect the test or template validation that emits it. Update the message to reference "hideConfirmation", then run the relevant tests to confirm the improved wording appears.

Written by the indexing model from the issue text.