[PROBLEM] Spotify renderer: missing visual indicator of currently playing track

[eldar]

@the_bertrum @TheOldPresbyope
Thanks for the detailed feedback! The screenshots above are from Spotify on Ubuntu Linux. I checked on my Windows laptop and the bug persists. Similar to your experiment on iPad, the played track is highlighted in green on my Android phone when played through moOde/librespot. I guess it's enough to report the bug to librespot's GitHub.