Recently Added Page (#261)

- Updated route task for 'recently-added'.
- Refactored GetRecentlyAdded task instead of creating new API task. This way is more efficient and prevents bloat.
- Adding pageSize to UserParams.cs (got lost in PRs).

API/Interfaces/ISeriesRepository.cs

@@ -58,7 +58,7 @@ namespace API.Interfaces
         Task<byte[]> GetVolumeCoverImageAsync(int volumeId);
         Task<byte[]> GetSeriesCoverImageAsync(int seriesId);
         Task<IEnumerable<SeriesDto>> GetInProgress(int userId, int libraryId, int limit);
-        Task<IEnumerable<SeriesDto>> GetRecentlyAdded(int userId, int libraryId, int limit);
+        Task<PagedList<SeriesDto>> GetRecentlyAdded(int libraryId, int userId, UserParams userParams);
         Task<SeriesMetadataDto> GetSeriesMetadata(int seriesId);
         Task<PagedList<SeriesDto>> GetSeriesDtoForCollectionAsync(int collectionId, int userId, UserParams userParams);
     }