icons list is exceeding screen size

[trappedinspacetime]

First of all, thank you for reviving slingscold project. I like it. I cloned this repository and built the application but when I launch it, application icon list exceeds screen on the right. Former slingscold used to exit when I click on empty area.
It would be faster if we could hide it instead of launching it every time. D-bus provides such a feature, but I don't know how to apply it.
Rastersof application launcher does it like

dbus-send --session --print-reply --dest=com.rastersoft.panther /com/rastersoft/panther/remotecontrol 'com.rastersoft.panther.remotecontrol.DoShow'

I tested it, it's pretty fast.