Connected screen in dmenu_custom

[ejwmoreau]

Location: https://github.com/scottgreenup/desktop/blob/master/bin/dmenu_custom#L14
Main display happens to be "HDMI2" for the lab computers, so changing "DVI-I-1" to that prevents python errors. Just in case you wanted to generalize this part.

[scottgreenup]

I'm going to try and find a better way of displaying the dmenu; I'd like to be able to programmable calculate where the cursor is and then calculate the screen it is located on.

[ejwmoreau]

Yeah, makes sense, that would be great :)