Unable to map cmd + function key

I was unable to map cmd + function key on my Razer keyboard.
Here's the `skhd -o` output

When pressed cmd `keycode: 0x37 flags: 000000000001000000000001000010000 `
When pressed cmd + F4 `keycode: 0x76 flags: 00000000100100000000000100001000`

In the `.skhdrc` I have this line that opens the terminal, and it works on Mac's keyboard.
```
# open Terminal
cmd - 0xB1 : open -a Terminal
```

So when I add another line to open the terminal using my external keyboard, it just doesn't work, even after restarting the service

Start by reproducing the external-keyboard shortcut with the reported `skhd -o` keycodes and compare it with the working Mac keyboard mapping in `.skhdrc`. Trace how `skhd` handles modifier and function-key input, then verify that a cmd+F4 mapping opens Terminal with the external keyboard.

Written by the indexing model from the issue text.