[공통][Bug] NetworkErrorModel 생성 오류 수정

app/src/main/java/kr/co/zumo/app/lifeplus/view/screen/error/NetworkErrorModel.java

@@ -15,7 +15,7 @@ import kr.co.zumo.app.lifeplus.view.screen.splash.ScreenStarterModel;
  * @history 민효동   [2019-04-02]   [최초 작성]
  * @since 2019-04-02
  */
-class NetworkErrorModel extends ScreenStarterModel {
+public class NetworkErrorModel extends ScreenStarterModel {
 
 
   @Override