Improve bookstore tutorial according to the feedback

docs/en/tutorials/book-store/part-02.md

@@ -577,8 +577,6 @@ Open the `Books.razor` and replace the content as the following:
 @using Volo.Abp.Application.Dtos
 @using Acme.BookStore.Books
 @using Acme.BookStore.Localization
-@using Microsoft.Extensions.Localization
-@inject IStringLocalizer<BookStoreResource> L
 @inherits AbpCrudPageBase<IBookAppService, BookDto, Guid, PagedAndSortedResultRequestDto, CreateUpdateBookDto>
 
 <Card>
@@ -625,13 +623,21 @@ Open the `Books.razor` and replace the content as the following:
         </DataGrid>
     </CardBody>
 </Card>
+
+@code
+{
+    public Books() // Constructor
+    {
+        LocalizationResource = typeof(BookStoreResource);
+    }
+}
 ````
 
 > If you see some syntax errors, you can ignore them if your application is properly built and running. Visual Studio still has some bugs with Blazor.
 
 * Inherited from  `AbpCrudPageBase<IBookAppService, BookDto, Guid, PagedAndSortedResultRequestDto, CreateUpdateBookDto>` which implements all the CRUD details for us.
 * `Entities`, `TotalCount`, `PageSize`, `OnDataGridReadAsync` are defined in the base class.
-* Injected `IStringLocalizer<BookStoreResource>` (as `L` object) and used for localization.
+* `LocalizationResource` is set to the `BookStoreResource` to localize the texts.
 
 While the code above is pretty easy to understand, you can check the Blazorise [Card](https://blazorise.com/docs/components/card/) and [DataGrid](https://blazorise.com/docs/extensions/datagrid/) documents to understand them better.
 

docs/en/tutorials/book-store/part-03.md

@@ -1351,7 +1351,6 @@ Here's the complete code to create the book management CRUD page, that has been
 @using Acme.BookStore.Localization
 @using Microsoft.Extensions.Localization
 @using Volo.Abp.AspNetCore.Components.Web
-@inject IStringLocalizer<BookStoreResource> L
 @inject AbpBlazorMessageLocalizerHelper<BookStoreResource> LH
 @inherits AbpCrudPageBase<IBookAppService, BookDto, Guid, PagedAndSortedResultRequestDto, CreateUpdateBookDto>
 
@@ -1396,7 +1395,7 @@ Here's the complete code to create the book management CRUD page, that has been
                                 Field="@nameof(BookDto.Type)"
                                 Caption="@L["Type"]">
                     <DisplayTemplate>
-                        @L[$"Enum:BookType.{context.Type}"]
+                        @L[$"Enum:BookType.{context.Type:D}"]
                     </DisplayTemplate>
                 </DataGridColumn>
                 <DataGridColumn TItem="BookDto"
@@ -1527,6 +1526,14 @@ Here's the complete code to create the book management CRUD page, that has been
         </Form>
     </ModalContent>
 </Modal>
+
+@code
+{
+    public Books() // Constructor
+    {
+        LocalizationResource = typeof(BookStoreResource);
+    }
+}
 ````
 
 {{end}}

docs/en/tutorials/book-store/part-05.md

@@ -420,6 +420,8 @@ Add the following code block to the end of the `Books.razor` file:
 {
     public Books() // Constructor
     {
+        LocalizationResource = typeof(BookStoreResource);
+        
         CreatePolicyName = BookStorePermissions.Books.Create;
         UpdatePolicyName = BookStorePermissions.Books.Edit;
         DeletePolicyName = BookStorePermissions.Books.Delete;
@@ -509,14 +511,11 @@ var bookStoreMenu = new ApplicationMenuItem(
 context.Menu.AddItem(bookStoreMenu);
 
 //CHECK the PERMISSION
-if (await context.IsGrantedAsync(BookStorePermissions.Books.Default))
+bookStoreMenu.AddItem(new ApplicationMenuItem(
-{
+    "BooksStore.Books",
-    bookStoreMenu.AddItem(new ApplicationMenuItem(
+    l["Menu:Books"],
-        "BooksStore.Books",
+    url: "/books"
-        l["Menu:Books"],
+).RequirePermissions(BookStorePermissions.Books.Default));
-        url: "/books"
-    ));
-}
 ````
 
 You also need to add `async` keyword to the `ConfigureMenuAsync` method and re-arrange the return value. The final `ConfigureMainMenuAsync` method should be the following:
@@ -545,14 +544,11 @@ private async Task ConfigureMainMenuAsync(MenuConfigurationContext context)
     context.Menu.AddItem(bookStoreMenu);
 
     //CHECK the PERMISSION
-    if (await context.IsGrantedAsync(BookStorePermissions.Books.Default))
+    bookStoreMenu.AddItem(new ApplicationMenuItem(
-    {
+        "BooksStore.Books",
-        bookStoreMenu.AddItem(new ApplicationMenuItem(
+        l["Menu:Books"],
-            "BooksStore.Books",
+        url: "/books"
-            l["Menu:Books"],
+    ).RequirePermissions(BookStorePermissions.Books.Default));
-            url: "/books"
-        ));
-    }
 }
 ````
 

docs/en/tutorials/book-store/part-06.md

@@ -41,7 +41,6 @@ Create an `Authors` folder (namespace) in the `Acme.BookStore.Domain` project an
 
 ````csharp
 using System;
-using JetBrains.Annotations;
 using Volo.Abp;
 using Volo.Abp.Domain.Entities.Auditing;
 
@@ -115,7 +114,6 @@ Created this class inside the `Acme.BookStore.Domain.Shared` project since we wi
 ````csharp
 using System;
 using System.Threading.Tasks;
-using JetBrains.Annotations;
 using Volo.Abp;
 using Volo.Abp.Domain.Services;
 

docs/en/tutorials/book-store/part-09.md

@@ -1214,14 +1214,11 @@ You will need to declare a `using Acme.BookStore.Authors;` statement to the begi
 Open the `BookStoreMenuContributor.cs` in the {{ if UI == "BlazorServer" }}`Acme.BookStore.Blazor`{{ else }}`Acme.BookStore.Blazor.Client`{{ end }} project and add the following code to the end of the `ConfigureMainMenuAsync` method:
 
 ````csharp
-if (await context.IsGrantedAsync(BookStorePermissions.Authors.Default))
+context.Menu.AddItem(new ApplicationMenuItem(
-{
-    context.Menu.AddItem(new ApplicationMenuItem(
         "BooksStore.Authors",
         l["Menu:Authors"],
         url: "/authors"
-    ));
+    ).RequirePermissions(BookStorePermissions.Books.Default));
-}
 ````
 
 ### Localizations

docs/en/tutorials/book-store/part-10.md

@@ -1132,6 +1132,8 @@ The final `@code` block should be the following:
 
     public Books() // Constructor
     {
+        LocalizationResource = typeof(BookStoreResource);
+        
         CreatePolicyName = BookStorePermissions.Books.Create;
         UpdatePolicyName = BookStorePermissions.Books.Edit;
         DeletePolicyName = BookStorePermissions.Books.Delete;