Check if we can avoid to modify the .desktop file

Changing the .desktop file results in an incremental update failure:

2024-12-01 18:28:29+0100: EXECUTE PATCH start-mullvad-browser.desktop
2024-12-01 18:28:29+0100: LoadSourceFile: destination file size 1849 does not match expected size 1784
2024-12-01 18:28:29+0100: LoadSourceFile failed
2024-12-01 18:28:29+0100: ### execution failed

Not a too big deal, as it doesn't corrupt anything, but it forces the download of a full update.

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