Adjust styling of password protected form

[nikola3244]

@adi8i It's what we talked about in Slack, just make the input and button in the same line, if nothing else. Thanks!

The password form is styled by theme. I am not sure what to do here, a custom form could be a solution.

[igor-gp]

@adi8i ok thanks, let's leave it for now and see what comes back from users over time