Update OF DL/Entities/Post/SinglePost.cs

Changed post IDs from int (Int32) to long (Int64) as OF post IDs now exceed the 32-bit Integer limit

OF DL/Entities/Post/SinglePost.cs

@@ -12,7 +12,7 @@ namespace OF_DL.Entities.Post
     public class SinglePost
     {
         public string responseType { get; set; }
-        public int id { get; set; }
+        public long id { get; set; }
         public DateTime postedAt { get; set; }
         public string postedAtPrecise { get; set; }
         public object expiredAt { get; set; }