Automatically add .desktop files in toolbox to the host

**Is your feature request related to a problem? Please describe.**
I use Fedora Silverblue and I use a separate toolbox for development. I installed my IDE in the toolbox, but since toolbox doesn't automatically add desktop entries, I had to manually make one.

**Describe the solution you'd like**
Automatically add .desktop files made in toolboxes to the hosts `$HOME/.local/share/applications/`

**Describe alternatives you've considered**
Manually writing a desktop file is tedious and not exactly a smooth experience.

**Additional context**
Nil