[GTK4] Gtk.Image/Gtk.Picture should support border-radius CSS attribute
Steps to reproduce
Create a Gtk.Image/Gtk.Picture with "border-radius: 50%"
Current behavior
- Image with icon name is rounded
- Image with a pixbuf: Pixbuf is not clipped
Expected outcome
Pixbuf clipped
Version information
- gtk4-4.0.2-2.fc33.x86_64
- Fedora 33