Changes in 1.8.1

• openuri: Fix an fd leak
• filechooser: Fix directory support
• build: Drop a fontconfig dependency
• snap: Use cgroups to identify confined apps
• documents: Add snap support
• wallpaper: Fix a crash
• build: Factor out a fuse check
• Translation updates

$ sha256sum xdg-desktop-portal-1.8.1.tar.xz 
01f5f87d3546b63bad85cdba40619913435235a499af3c48ec7554ce8200dcdf  xdg-desktop-portal-1.8.1.tar.xz