Log Message:
gtk3+: update to 3.24.16.

Overview of Changes in GTK+ 3.24.16
===================================

* Fix the build

Overview of Changes in GTK+ 3.24.15
===================================

* filechooser:
 - Fix a crash
 - Support selecting directories with a new enough
   file chooser portal

* textview:
 - Speed up tag handling

* wayland:
 - Fix problems with clipboard handling
 - Fix a crash in the Wayland input method
 - Support cursor scale of 400%
 - Fix a crash in glade

* css: Support font-feature-settings

* Adwaita:
 - Use tabular figures where appropriate
 - Color tweaks for dark mode
 - Improve rendering of rounded corners

* Translation updates
 Dutch
 German
 Japanese
 Korean
 Lithuanian
 Norwegian Bokmål
 Persian
 Ukrainian