No instructions for Fedora Atomic Desktop

I try to use the Jetbrains Toolbox AppImage package in a BoxBuddy/Distrobox container on [Universal Blue distros](https://universal-blue.org/) (based on Fedora Silverblue, this is the future of Linux desktop for non-techy users).

On Fedora images for Distrobox, AppImage packages don't work out of the box. They need A BUNCH OF DEPENDENCIES to be installed MANUALLY by the users before being able to run. And there is NO EASY INSTRUCTION TO KNOW WHAT MISSING LIBRARIES TO INSTALL WHATSOEVER for new users. I had to find the missing libraries by myself.

Install GTK (latest): `sudo dnf install gtk4`
Install FUSE filesystem (legacy version): `sudo dnf install fuse fuse-libs`

Maybe you should include this important information in the troubleshooting section of the documentation for newbie users?