Fix theme and icon color on startup

app/src/main/java/com/cappielloantonio/play/adapter/PlayerNowPlayingSongAdapter.java

@@ -16,6 +16,8 @@ import com.cappielloantonio.play.helper.MusicPlayerRemote;
 import com.cappielloantonio.play.model.Song;
 import com.cappielloantonio.play.repository.SongRepository;
 
+import org.jetbrains.annotations.NotNull;
+
 import java.util.ArrayList;
 import java.util.List;