widget: Don't hide the mouse pointer when a popover is presented
widget: Don't hide the mouse pointer when a popover is presented

This was broken in commit 776823da23b81b70e430c494bb66b54954c42d7b.

https://bugzilla.gnome.org/show_bug.cgi?id=786441

thestinger/vte-ng,thestinger/vte-ng,thestinger/vte-ng