xdg-desktop-portal 0.4

• No longer rely on cgroups to find the app id
• Fix handling of mime type filters in the file chooser portal
• Translation updates:
  Chinese
  Czech
  German
  Serbian

$sha256sum xdg-desktop-portal-0.4.tar.xz
 41fd8c6b5fbad08afeccfe67e5f472555d13223a1ec880eed90218b33ac595ea xdg-desktop-portal-0.4.tar.xz