Add name of floppy image to list view of image DB

[RetroTechN00b]

When browsing the floppy image DB from the SidecarT menu currently (0.14 beta) the list shows program/game names and the crew who released the disk image.

As a user I would like to additionally see the name of the ST image file e.g. A_011.ST which is hosting the program/game listed.

The SidecarT with it's convenient online floppy DB is great for trying and testing games which I never played before. Once I found a game which I is fun to play, I would like to download it, so I can store it locally on the SidecarTs SD-Card and/or use the image in other STs as well.For this use case the file name is a valuable information.