Disable Authentication & Login Page Rework (#619)

* Implemented the ability to disable authentication on a server instance. Admins will require authentication, but non-admin accounts can be setup without any password requirements.

* WIP for new login page.

* Reworked code to handle disabled auth better. First time user flow is moved into the user login component.

* Removed debug code

* Removed home component, shakeout testing is complete.

* remove a file accidently committed

* Fixed a code smell from last PR

* Code smells

API/Interfaces/Repositories/IUserRepository.cs

@@ -15,6 +15,8 @@ namespace API.Interfaces.Repositories
         public void Delete(AppUser user);
         Task<IEnumerable<MemberDto>>  GetMembersAsync();
         Task<IEnumerable<AppUser>> GetAdminUsersAsync();
+        Task<IEnumerable<AppUser>> GetNonAdminUsersAsync();
+        Task<bool> IsUserAdmin(AppUser user);
         Task<AppUserRating> GetUserRating(int seriesId, int userId);
         Task<AppUserPreferences> GetPreferencesAsync(string username);
         Task<IEnumerable<BookmarkDto>> GetBookmarkDtosForSeries(int userId, int seriesId);