Add `NSStatusItemSpacing` and `NSStatusItemSelectionPadding` to `NSGlobalDomain`
options.
These options control the spacing between and padding inside status icons in the
menu bar. With these options, it's possible to squeeze more items on the menu
bar, something that's especially useful on machines with a notch.
This is a copy of #872, which was closed without being merged.
Co-Authored-By: Rob Harrop <rob@robharrop.dev>