#75 Some re-directory'd tracks have broken art

Particularly:

• Sburban Meltdown (Glitchstuck Volume 1)
• Sburban Genesis (Land of Fans and Music 2)
• 720413 (Land of Fans and Music 3)
• Ophiucus (Full Suite) (Land of Fans and Music 5)

Thanks for catching these, Celeste, Niklink, Sgeo!

I'd like to make a quick automated check via the REPL to search for any other possibly missed tracks before closing/fixing these, too.

(Technically this is a hsmusic-media fix but whatever lol)

Fixed in #88 (corresponding media patch), thanks Niklink!