Update spotify connector
Update spotify connector

Don't scrobble songs, if another source (e.g. a tab, or an app) is playing music.

Resolves #2242.

galeksandrp/web-scrobbler,alexesprit/web-scrobbler,fakelbst/Chrome-Last.fm-Scrobbler,fakelbst/Chrome-Last.fm-Scrobbler,inverse/web-scrobbler,carpet-berlin/web-scrobbler,david-sabata/web-scrobbler,carpet-berlin/web-scrobbler,galeksandrp/web-scrobbler,david-sabata/web-scrobbler,alexesprit/web-scrobbler,inverse/web-scrobbler