* Testing PASTE/COPY/CUT on macOS
Testing using ZMK Studio v0.3.1 to send these keys.
Using Karabiner-EventViewer, nothing from C_AC_CUT, C_AC_COPY, C_AC_PASTE, nor from paste special which I assume would be called C_AC_PASTE_SPECIAL (while for example C_AC_SEARCH was detected).
Did see K_CUT, K_COPY, K_PASTE, but they appear to do nothing by default.
* Add macOS footnote for editing keys K_CUT, K_COPY, K_PASTE
* Add macOS testing for K_UNDO, K_REDO etc.
C_AC_UNDO - not even registering as a keypress
K_UNDO - detected as a keypress, but no effect. Does not act like command+z
C_AC_REDO - not even registering as a keypress
K_AGAIN aka K_REDO - detected as a keypress, but no effect. Does not act like shift+command+z
* None of the six 'Input Assist' consumer keys work on macOS
Testing using ZMK Studio v0.3.1 to send these keys with macOS 15.6.1 (ARM),
and watching for keypresses with Karabiner-EventViewer v15.5.0.
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