Addressed the DeleteAsync(object[]) method.
Addressed declaring IArticleWordRepository.
Made UserRepository implement IRepository<User>.
Introduced the FindAsync method.
Fixed the typo.
Removed FindAsync(id) already defined via interface.
Implemented the HasPermissionsAsync method.
Implemented the EmptyDisposable class.
Implemented the FindAsync(objec[]) method.
Addressed code-analysis errors.