Enable macOS universal build

[LenaWil]

Creates a build that runs on both architectures.

I feel like this should break things but small tests I did it seems to work?

---

Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[CommandMC]

Excuse my inexperience, but do we still want to keep the separate x86_64 and arm64 builds? Wouldn't the universal build alone suffice?

[LenaWil]

Honestly could be, I don’t really care, but some people do like the smaller size and I have no idea how the auto update works.
I don’t know what y’all’s opinions on universal builds are and why they weren’t enabled; figured the easiest way to get an answer would be to send a pull request. 🙃