Fix a wrong translation in acf-pl_PL.po

[dloranc]

"Maximum Rows" should be translated to "Maksymalna liczba wierszy", not to "Minimalna liczba wierszy".

[elliotcondon]

Hi @dloranc

Thanks for the translation improvement.
I'll manually add this into the next version (only due to PRO => free workflow).

Thanks again!

[elliotcondon]

Thanks @dloranc

I've just manually applied this fix :)

[dloranc]

Thank you :)