fixed color & playbackstatus check
fixed color & playbackstatus check

- disabled PlaybackStatus code as it cannot be read using dbus (see
  https://community.spotify.com/t5/Help-Desktop-Linux-Windows-Web/DBus-MPRIS-interface-bug/td-p/1262889
  )
- implemented (ugly) workaround code for stopped state
- code for paused state is still missing maybe as there is no property
  to track the current play status of a song (only Metadata can be
  requested using dbus)
- fixed return of normal state
  variable color does not exist
  replaced it with self.color_playing and using color_good as fallback

Signed-off-by: Andrwe Lord Weber <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@andrwe.org>

alexoneill/py3status,guiniol/py3status,valdur55/py3status,valdur55/py3status,docwalter/py3status,Andrwe/py3status,tobes/py3status,ultrabug/py3status,Andrwe/py3status,guiniol/py3status,ultrabug/py3status,valdur55/py3status,Spirotot/py3status,Shir0kamii/py3status,vvoland/py3status,ultrabug/py3status,tobes/py3status