iChisel GUI issue with large resolutions (or possible just high dpi - retina Mac) across different versions and mopacks

[knzai]

When looking to see if this bug already existed, I found a bug posted about a different modpack. They gave details in their issue, I can add additional details if you need.

It opens normally but then when I go to actually do a "chisel" all it does the weird offset featured in this following issue:

https://github.com/FTBTeam/FTB-Modpack-Issues/issues/328