Document portal: set st_nlink to 1 for documents
Document portal: set st_nlink to 1 for documents

If it's not set, the default value is 0 and Qt fails to detect
whether the mounted file exists or not

matthiasclasen/xdg-desktop-portal,flatpak/xdg-desktop-portal,matthiasclasen/xdg-desktop-portal,flatpak/xdg-desktop-portal,matthiasclasen/xdg-desktop-portal,flatpak/xdg-desktop-portal,flatpak/xdg-desktop-portal,matthiasclasen/xdg-desktop-portal,matthiasclasen/xdg-desktop-portal