anchor.diff:    year,
     likesAsc,
     likesDesc,
  -  score,
  +  rated,
     sciFi,
     fantasy,
   }
  
positive.code:       case MovieQuery.year:
          return orderBy('year', descending: true);
  
        case MovieQuery.score:
          return orderBy('score', descending: true);
      }
    }
  }
  
negative.code:                   child: Text('Sort by Year'),
                  ),
                  const PopupMenuItem(
                    value: MovieQuery.rated,
                    child: Text('Sort by Rated'),
                  ),
                  const PopupMenuItem(
                    value: MovieQuery.likesAsc,
  