klomp-lcd: rework cmdline args

-add --ipmagic to use ipmagic instead of hardcoding raspi
-default to looping, add --once to turn it off
-change --delay to millis and default it to 1000ms
update raspi pubkey
copy 'speaker' from raspi and rename to 'klomp-display'
klomp-display: change for running on the nuc
taffybar[klomp]: add klomp-bar setup for nuc
xmonad[bindings]: klomp bindings raspi => nuc
xmonad[bindings]: remove pi vnc binding