xdg-desktop-portal 1.2.0

• notification: Use icon validator from flatpak
• notification: Don't leave temp files around
• email: Validate options better
• inhibit: Validate options better
• file chooser: Add support for setting the current filter
• Translation updates

$ sha256sum xdg-desktop-portal-1.2.0.tar.xz 
c9a4d6c415417aed3231ebc6c9a4091b90199bea4295aab311ce3dab4032e194  xdg-desktop-portal-1.2.0.tar.xz