Lots of changes to get code ready to add library.

API/Helpers/AutoMapperProfiles.cs

@@ -1,4 +1,5 @@
-using API.DTOs;
+using System.Linq;
+using API.DTOs;
 using API.Entities;
 using AutoMapper;
 
@@ -9,6 +10,10 @@ namespace API.Helpers
         public AutoMapperProfiles()
         {
             CreateMap<AppUser, MemberDto>();
+            CreateMap<Library, LibraryDto>()
+                .ForMember(dest => dest.Folders,
+                    opt => 
+                        opt.MapFrom(src => src.Folders.Select(x => x.Path).ToList()));
         }
     }
 }