Changes in 1.5.2

• email: Work with sandboxed email clients
• wallpaper: Support http: uris
• wallpaper: Improve preview
• appchooser: Modernize the appearance
• background: Improve application monitoring
• Require xdg-desktop-portal 1.5

$ sha256sum xdg-desktop-portal-gtk-1.5.2.tar.xz 
7f633b4b3ba916835345a21476731c582f00201567ae380b06193725abd01ee7  xdg-desktop-portal-gtk-1.5.2.tar.xz