Correct Polish disclaimer confirmation.

[mavethee]

Fix grammar and confirmation text not matching what user is asked to type.

Jeszcze = Yet

Już = Already

Wsparcie = Support is a bit not clear so extended that, considering end users are a bit dummies

Generally looks fine and sorry for overlooking it earlier unless it's not an issue to do re-release for this 5 people using localized macOS 😅

[italomandara]

Thanks a lot for your help!