Updater fix, disregard previous version.

Updater should now work as expected.

Dark UI

If running a release commit, program will check for new release and ask user if they would like to update. Updater broken, will fix in next release.
Also added a basic dark UI theme, will improve in future releases.

GZLauncher First Release!

First release of GZLauncher, should be fully fit for use as-is! 🥳

1.0 Features are:

• Easy mod management
• Easy WAD management
• Support for multiple configs

The tarball contains a packaged app for Linux users, other platforms will need to run from source currently.