Merge pull request #9491 from mcirlanaru/bug_834718

Bug 834718 - [Music] Add visual feedback for current view by ... r=@dominickuo(cherry picked from commit c4ebcc10a3b3097b5245cd826599788d3b56bb7e)

Conflicts:

	apps/music/index.html
	apps/music/style/music.css
Merge pull request #9929 from mcirlanaru/v1-train_bug_834718

Bug 834718 - [Music] Add visual feedback for current view by ... r=@dominickuo(cherry picked from commit c4ebcc10a3b3097b5245cd826599788d3b56bb7e)

Conflicts:

	apps/music/index.html
	apps/music/style/music.css