Bulk Add to Collection (#674)

* Fixed the typeahead not having the same size input box as other inputs

* Implemented the ability to add multiple series to a collection through bulk operations flow. Updated book parser to handle "@import url('...');" syntax as well as @import '...';

* Implemented the ability to create a new Collection tag via bulk operations flow.

API/Interfaces/IUnitOfWork.cs

@@ -15,6 +15,7 @@ namespace API.Interfaces
         IFileRepository FileRepository { get; }
         IChapterRepository ChapterRepository { get; }
         IReadingListRepository ReadingListRepository { get; }
+        ISeriesMetadataRepository SeriesMetadataRepository { get; }
         bool Commit();
         Task<bool> CommitAsync();
         bool HasChanges();