Can't run .desktop files from the desktop anymore

Originally created by @PavlaVesela on #17193 (Redmine)

USE: Tails 4.0

Hello,
Unable to run program shortcut or shortcut script, it always opens to me in a text editor, even if it is set to run as a program.
https://i.imgur.com/hMmr6uA.png
https://i.imgur.com/o5mRFyu.png

in older versions of tails, I didn’t have this problem.

Edited May 21, 2020 by Ghost User

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information