resolve issue with Change Detection group

Oqtane.Server/Repository/SettingRepository.cs

@@ -1,14 +1,9 @@
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Caching.Memory;
-using Oqtane.Enums;
 using Oqtane.Infrastructure;
 using Oqtane.Models;
-using Oqtane.Modules.Admin.Users;
 using Oqtane.Shared;
 
 namespace Oqtane.Repository