Add `Command-Option-M` as a banned key combination

[dan-snelson]

trafficstars

Confirming that Nudge 1.1.7.81411 does block Command-M per #351.

However, Command-Option-M still works to minimize all windows of the front app.

[dan-snelson]

(And it's especially fun when aggressiveUserFullScreenExperience is enabled past the deadline and the user minimizes Nudge.)

[erikng]

What happens?

[erikng]

Guessing it's just a blur window?

[dan-snelson]

Correct; serves 'em right …

… Bbbbbuuuuwwwwahahahaha!!!