Fix Deezer is isPlaying() detection
Fix Deezer is isPlaying() detection

Currently to check if a song is playing and should be scrobbled,
the existence of an item with css class "svg-icon-pause" is being
checked. This, unfortunately, causes problems as soon as playlists,
albums or anything playable is being displayed since every track
also has an item with "svg-icon-pause".

This results in the current selected track in the player, no matter
what that is, being scrobbled as being played... even though it is
not. This is especially bad since Deezer preselect a song of its
choice when you open a new session which will then get scrobbled as
being played if you browse the your collection or whatnot.

The fix is rather simple: Limit the css selector to the actual player
itself (an element with id "player") which is guaranteed to be unique
for the whole page.

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