Fixed: Delete files from Artist Mass Editor not actually deleting files

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>
Signed-off-by: Robin Dadswell <robin@dadswell.email>

src/Readarr.Api.V1/Author/AuthorEditorResource.cs

@@ -12,6 +12,7 @@ public class AuthorEditorResource
         public List<int> Tags { get; set; }
         public ApplyTags ApplyTags { get; set; }
         public bool MoveFiles { get; set; }
+        public bool DeleteFiles { get; set; }
     }
 
     public enum ApplyTags