Update Polish translation

[Pruchniakowski]

Update Polish translation

Greetings,
Gootector

Resolves: (direct link to the issue)

(short description of the changes and the motivation to make the changes)

• I made sure the code compiles on my machine
• I made sure there are no unnecessary changes in the code
• I made sure the title of the PR reflects the core meaning of the issue you are solving
• I made sure the commit message(s) contain a description and answer the question "Why do those changes fix that particular issue?" or "Why are those changes really necessary as improvements?"
• I have confirmed that my code does not introduce intentional security flaws

[Ckath]

sure

[Pruchniakowski]

Thanks!