Genre: Allow tracks without thumbnails to be filtered out

Fix #61
4 jobs for genre_tracks_with_thumbnails in 11 minutes and 24 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #288348
amd64 debian
asan-ubsan

00:11:23

passed #288345
amd64 debian
linux

00:09:26

passed #288346
win32
win32

00:10:02

passed #288347
win64
win64

00:11:15