Bumps to resvg 0.38. It contains quite a few changes wrt how bboxes are handled, but also the resvg API itself. But these changes are what enable us to easily add filters in the first place.
Adds support for filters (only a few edge cases are not working correctly yet because they are a bit difficult to handle). The resolution of filters can be changed via a setting (which means it could in theory also be controlled from Typst)
This PR: