unzipped appimage releases

[jarama]

Proposal

Thanks for your amazing software, it makes the generation of images on Linux a breeze :)

As a suggestion: would it be possible to also publish the unzipped AppImage for every new release of StabilityMatrix on GitHub? This way we can integrate the links into GearLever so that it will automatically update StabilityMatrix every time you publish a new release. Unfortunately this feature of GearLever does not work when the AppImage is zipped on GitHub.