Use a better method to share common page layout

Hcs.WebApp/Components/Pages/Test/Export.razor

@@ -11,8 +11,6 @@
 
 @attribute [Authorize]
 
-@layout AuthorizedLayout
-
 @implements IDisposable
 
 @inject NavigationManager NavigationManager
@@ -21,7 +19,9 @@
 
 <PageTitle>Тестирование экспорта</PageTitle>
 
-<RadzenSplitter Orientation="Orientation.Vertical" Style="height: 100%; border: 1px solid rgba(0,0,0,.08);">
+<AuthorizedContent Roles="@AppRole.OPERATOR_TYPE">
+    <Content>
+        <RadzenSplitter Orientation="Orientation.Vertical" Style="height: 100%; border: 1px solid rgba(0,0,0,.08);">
             <RadzenSplitterPane Size="200px">
                 <div style="height: 100%;overflow: auto;">
                     <RadzenCardGroup Responsive="true">
@@ -51,7 +51,9 @@
             <RadzenSplitterPane Size="auto" Resizable="false">
                 <EventConsole @ref=@console />
             </RadzenSplitterPane>
-</RadzenSplitter>
+        </RadzenSplitter>
+    </Content>
+</AuthorizedContent>
 
 @code {
     EventConsole console = default!;
@@ -66,16 +68,6 @@
     FileMessageCapturer messageCapturer;
     bool catchMessageBody;
 
-    [CascadingParameter]
-    public AuthorizedLayout Layout { get; set; }
-
-    protected override void OnInitialized()
-    {
-        base.OnInitialized();
-
-        Layout.Roles = AppRole.ADMINISTRATOR_TYPE;
-    }
-
     public void Dispose()
     {
         if (messageCapturer != null)

Hcs.WebApp/Components/Shared/AuthorizedContent.razor

@@ -1,13 +1,9 @@
-@inherits LayoutComponentBase
-
-@using Microsoft.AspNetCore.Authorization
-
-@layout MainLayout
+@using Microsoft.AspNetCore.Authorization
 
 <AuthorizeView Roles="@Roles">
     <Authorized>
         <CascadingValue Value="this">
-            @Body
+            @Content
         </CascadingValue>
     </Authorized>
     <NotAuthorized>
@@ -18,5 +14,9 @@
 </AuthorizeView>
 
 @code {
-    public string Roles { get; set; }
+    [Parameter]
+    public required string Roles { get; set; }
+
+    [Parameter]
+    public required RenderFragment Content { get; set; }
 }