Add the colon key as a supported key.

[JulienLecoq]

Right know it's impossible to use the colon key inside a keybinding since this key is not defined in AeroSpace. I would like to be able to use this key inside some of my keybindings.

[JulienLecoq]

My bad, I don't even need it. I thought I needed it because the azerty "m" key is the ":" key on qwerty but it isn't, it's the ";" key on qwerty which is supported by AeroSpace.