entry: Never show handles and popover at the same time
entry: Never show handles and popover at the same time

Hide the handles when the popover appears, and brind them back
when it disappears. This will need revisiting if we start using
the popover for mouse interaction as well, where we may not
want handles to show up.

davidgumberg/gtk,jadahl/gtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,alexlarsson/gtk,jigpu/gtk,jigpu/gtk,davidgumberg/gtk,alexlarsson/gtk,grubersjoe/adwaita,grubersjoe/adwaita,chergert/gtk,alexlarsson/gtk,jadahl/gtk,chergert/gtk,grubersjoe/adwaita,Adamovskiy/gtk,Adamovskiy/gtk,chergert/gtk,Adamovskiy/gtk,jigpu/gtk,jigpu/gtk,alexlarsson/gtk,chergert/gtk,alexlarsson/gtk,grubersjoe/adwaita,Adamovskiy/gtk,grubersjoe/adwaita,Adamovskiy/gtk,jigpu/gtk,jadahl/gtk,davidgumberg/gtk,jadahl/gtk,Adamovskiy/gtk,jadahl/gtk,davidgumberg/gtk,jadahl/gtk,grubersjoe/adwaita,davidgumberg/gtk,alexlarsson/gtk,jigpu/gtk,chergert/gtk,grubersjoe/adwaita,chergert/gtk,jigpu/gtk,alexlarsson/gtk,jadahl/gtk,alexlarsson/gtk,davidgumberg/gtk,davidgumberg/gtk,jadahl/gtk,chergert/gtk,davidgumberg/gtk,grubersjoe/adwaita,Adamovskiy/gtk