Default "Cmd+\" shortcut has a conflict on macOS Monterey

@branok,

Unfortunately the public API that lets us get a listing of in-use global keyboard shortcuts doesn't have any information about what app or process has claimed it. There are only 3 values for each hot key: the key itself, the modifiers (command, control, option, shift) and whether or not its enabled. I don't think there are material flaws in the logic we're using to check this state, but this API call is what we're using to verify that you're not trying to assign an in-use keyboard shortcut: https://github.com/agilebits/shortcutrecorder/blob/master/Framework/Source/SRValidator.m#L73