switched to use the problemdetails class when responding instead of custom errorresponse class

server/Models/EpisodeFilter.cs

@@ -9,5 +9,7 @@ namespace server.Models
     public class EpisodeFilter
     {
         public int? Season { get; set; } = null;
+        public DateTime? StartDate { get; set; } = null;
+        public DateTime? EndDate { get; set; } = null;
     }
 }

server/Models/ErrorResponse.cs

@@ -1,12 +0,0 @@
-namespace server.Models
-{
-    public class ErrorResponse
-    {
-        public string Error { get; set; }
-
-        public ErrorResponse(string error)
-        {
-            Error = error;
-        }
-    }
-}