Remove ProfileObjStateDto and update mappings

- Deleted the `ProfileObjStateDto` class and its `States` property.
- Removed mapping for `ProfileObjState` to `ProfileObjStateDto` in `MappingProfile`.
- Updated `States` mapping to handle null values by converting to a list or returning an empty array.
- Replaced `States` property in `ProfileObjState` with a `ToList()` method that aggregates state values.

src/WorkFlow.Domain/Entities/ProfileObjState.cs

@@ -82,8 +82,7 @@ public class ProfileObjState
     [ForeignKey("StateId")]
     public virtual State? State1 { get; set; }
 
-    [NotMapped]
-    public IEnumerable<string?> States => new List<string?>
+    public IEnumerable<string?> ToList() => new List<string?>
     {
         State1?.IntlState, State2, State3, State4
     };