This PR adds polish translations.
*Screenshots*: Always include screenshots if there is any change to the UI.
*Sandbox URL*: TBD - sandbox is being provisioned.
*Merge deadline*: "None" if there's no rush, "ASAP" if it's critical, or provide a specific date if there is one.
1. Step by step manual setup/testing/verification instructions go here.
2. Step 2
*Author notes and concerns*:
1. We are aware that there is a glitch affecting the UI for this feature in the following way: ...
Currently looking for ways to fix it.
2. We tried to optimize for accessibility, but there are still some open questions: ...
[ ] (OpenCraft internal reviewer's GitHub username goes here)
[ ] edX reviewer[s] TBD