Experimental macOS Support

I have good news for y'all macOS gamers! CivIdle has an experimental macOS build available - if you install Steam on macOS, Steam should automatically pick it up.

The build is Intel (x64) but should work on Apple Silicon Macs as well (via Rosetta 2). Unfortunately, I don't own an Apple Silicon Mac so it's unlikely that I will be able to provide an Apple Silicon build. In fact, the only Mac I currently own is more than 8 years old and had been broken for more than 3 years. I've just recently managed to get it working again, see the photo evidence below:

So until my Mac gives up again, enjoy the macOS build!

Cheers, FishPond