refactoring

EpsonPrintService/Program.cs

@@ -21,6 +21,7 @@ var config = JsonSerializer.Deserialize<EpsonPrintServiceConfiguration>(
     File.ReadAllText("config.json"));
 
 kernel.Bind<IDiscoveryService>().To<DiscoveryService>().InSingletonScope();
+kernel.Bind<HttpClient>().ToConstant(new HttpClient { Timeout = TimeSpan.FromSeconds(30) }).InSingletonScope();
 
 
 kernel.Bind<EpsonPrintServiceConfiguration>().ToConstant(config);