Updated the code for non-integer scale factors
Updated the code for non-integer scale factors

The code was archaic, written when scale factors could be only integers and icon scaling was poor.

lxde/lxqt-config,stefonarch/lxqt-config,stefonarch/lxqt-config,lxde/lxqt-config,lxde/lxqt-config,lxde/lxqt-config,stefonarch/lxqt-config