xdg-desktop-portal 1.4.0

• Add a background & autostart portal
• Add a gamemode portal
• Add a camera portal
• Require pipewire 0.2.6
• inhibit: Track session state
• documents: Fix a ref-counting bug
• screencast: Add cursor modes
• screencast: Memory leak fixes
• Translation updates

$ sha256sum xdg-desktop-portal-1.4.0.tar.xz 
7e69d2c79d4ee1d2e3afc121460906144bdb28ac0936558fd71b6abae95f5398  xdg-desktop-portal-1.4.0.tar.xz