Maintenance update

Wow, has it been over a year already? Sorry for the long wait! Thanks to @jonostanck's PR for the Polish language, I spent some time updating the card again.

Besides the Polish translation, I mainly worked on small fixes that were necessary over time due to changes in, for example, browser_mod.

In another branch I am still working on a new version of the card. The feature requests will be implemented in that version.

What's Changed

• Create pl.json by @jonostanck in #21

New Contributors

• @jonostanck made their first contribution in #21

Full Changelog: v0.6.0...v0.7.0