gtkgesture: Preserve accuracy when translating events
gtk_widget_translate_coordinates()
uses an int argument and thus cuts off
any decimal parts. This can leads to reduces accuracy when e.g.
measuring the distance of a drag.
GTK4 is not affected as the translations is done differently.
@calebccff noticed the loss of accuracy in guidog/phosh-osk-stub!115 (closed)
Edited by Guido Günther