Linux support

[HENDRIX-ZT2]

• windows taskbar utilities are imported in gui/widgets.py no matter what
• steam game search uses registry and also hardcodes windows style paths, instead of separating directories in os.path.join
• attempting to run cobra-tools/ovl_util/texconv/texconv.exe which is a windows executable, without checking if wine is installed, and if so, running it through wine

[leofleeo]

When running texconv.exe through wine, you have to prepend "Z:/" (the linux drive) to the file location, as it does not autofill the drive name

[Distantz]

the lua de-compilation program also caused issues for me when trying to run cobra tools through pipeline.