Log Message:
gtk3: updated to 3.24.28

Overview of Changes in GTK+ 3.24.28
===================================

* Input:
 - Improve dead key handling

* CSS:
 - Fix rendering of scaled text shadows

* Wayland:
 - Fix matching of accelerators with multiple layouts

* X11:
 - Trap errors from the COW

* Build:
 - Make gtk3-update-icon-cache output reproducible

* Translation updates:
 Serbian