v0.4.4

What's Changed

• fix: fix URL import extension and STEP thumbnail by @moddroid94 in #23

WARNING: All the model imported via URL could suffer a problem where the extension is missing from the filename, it is not corrupted or anything, and you wont notice from the UI, but when downloaded the file is without extension, you can just add the dot between the name and the extension and the file will open.

This PR fixes this problem, but will NOT retroactively fix the previously imported models, so it is advised to re-import them, i'm sorry for the error, but this is still somewhat a beta.

Full Changelog: v0.4.3...v0.4.4