Add polygonization parameters

Polygonization now has many parameters, see https://github.com/fieldsoftheworld/ftw-baselines?tab=readme-ov-file#6-polygonize-the-output-using-ftw-inference-polygonize

I'm not totally sure what's available in the API, so this likely needs a ticket there to get the full set in there. But it'd be good to have an 'advanced' tab that lets users set different options here.