Use list instead of map for songs in internet search

Fixes issues with sorting

src/qobuz/qobuzfavoriterequest.cpp

@@ -93,6 +93,10 @@ void QobuzFavoriteRequest::AddAlbums(const SongList &songs) {
   AddFavorites(FavoriteType_Albums, songs);
 }
 
+void QobuzFavoriteRequest::AddSongs(const SongList &songs) {
+  AddFavorites(FavoriteType_Songs, songs);
+}
+
 void QobuzFavoriteRequest::AddSongs(const SongMap &songs) {
   AddFavoritesRequest(FavoriteType_Songs, songs.keys(), songs.values());
 }