gtk3x: gui_dialog_vgrid_add() not working for horizontal dlg
gui_dialog_vgrid_add() always adds widgets vertically, as Vgrid name suggests. However, sometimes horizontal layout would be the right thing to do (old code did that).
gui_dialog_vgrid_add() always adds widgets vertically, as Vgrid name suggests. However, sometimes horizontal layout would be the right thing to do (old code did that).