Swamy/remove unused usings and reorganize usings (#489)

* Removed and Reordered the using statements

* Removed and Reordered the usings inside Web Project

* Removed and Reordered the usings inside PublicApi project

* Removed Unused usings and reorganized usings inside Infrastructure project

src/Web/Controllers/FileController.cs

@@ -1,8 +1,8 @@
-using System;
-using System.IO;
-using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.eShopWeb.Web.ViewModels.File;
+using System;
+using System.IO;
 
 namespace Microsoft.eShopWeb.Web.Controllers
 {

src/Web/Controllers/OrderController.cs

@@ -1,5 +1,4 @@
 using MediatR;
-using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.eShopWeb.Web.Features.MyOrders;

src/Web/Controllers/UserController.cs

@@ -1,10 +1,10 @@
-using System.Collections.Generic;
-using System.Linq;
-using System.Security.Claims;
+using BlazorShared.Authorization;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
-using BlazorShared.Authorization;
 using Microsoft.eShopWeb.ApplicationCore.Interfaces;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Claims;
 using System.Threading.Tasks;
 
 namespace Microsoft.eShopWeb.Web.Controllers