[macOS] command key event left and right reverse

[TakWolf]

Left command => RWin

KeyboardInput { scancode: 55, state: Pressed, virtual_keycode: Some(RWin), modifiers: ModifiersState { shift: false, ctrl: false, alt: false, logo: true } }

---

Right command => LWin

KeyboardInput { scancode: 54, state: Pressed, virtual_keycode: Some(LWin), modifiers: ModifiersState { shift: false, ctrl: false, alt: false, logo: true } }

[TakWolf]

winit version: 0.19.0

[Osspial]

Looks like the key-codes are just swapped around in the key-code mapping function. The official key-code list doesn't actually list a key-code for right command, so it seems like it would be a pretty easy mistake to make.

This should be a fairly easy problem to fix, so a PR would be welcome.