add TracksPage

ui/controller/routes.go

@@ -14,6 +14,7 @@ const (
 	NowPlaying
 	Playlist
 	Playlists
+	Tracks
 )
 
 type Route struct {
@@ -52,6 +53,10 @@ func PlaylistsRoute() Route {
 	return Route{Page: Playlists}
 }
 
+func TracksRoute() Route {
+	return Route{Page: Tracks}
+}
+
 func ArtistsRoute() Route {
 	return Route{Page: Artists}
 }