Implemented authentication starte components

ShopAdmin/Components/Layout/MainLayout.razor

@@ -1,5 +1,6 @@
 @inherits LayoutComponentBase
 @using Blazored.Toast
+@using Microsoft.AspNetCore.Components.Authorization
 
 <header class="top-bar">
     <a href="/" class="brand">
@@ -9,7 +10,7 @@
             <circle cx="75" cy="80" r="5" fill="#4dabff" opacity="0.6" />
             <circle cx="75" cy="20" r="5" fill="#4dabff" opacity="0.6" />
         </svg>
-            
+
         <div class="text-column">
             <span class="brand-main">Lite<span class="brand-accent">Charms</span></span>
             <span class="payoff-line">Shop Administration &amp; Monitoring</span>
@@ -19,13 +20,28 @@
     <TopBarAuthstateView IsAuthenticated="false" />
 </header>
 
-<NavShelf IsOpen="isShelfExpanded" IsOpenChanged="OnShelfStateChanged" @rendermode="InteractiveServer" />
+<CascadingAuthenticationState>
+    <AuthorizeView>
+        <Authorized>
+            <NavShelf IsOpen="isShelfExpanded" IsOpenChanged="OnShelfStateChanged" @rendermode="InteractiveServer" />
+        </Authorized>
+    </AuthorizeView>
+</CascadingAuthenticationState>
 
-<div class="page-wrapper @(isShelfExpanded ? "shifted-canvas" : "")">
-    <main>
-        @Body
-    </main>
-</div>
+<CascadingAuthenticationState>
+    <div class="page-wrapper @(isShelfExpanded ? "shifted-canvas" : "")">
+        <AuthorizeView>
+            <Authorized>
+                <main class="content-body">
+                    @Body
+                </main>
+            </Authorized>
+            <NotAuthorized>
+                <Login />
+            </NotAuthorized>
+        </AuthorizeView>
+    </div>
+</CascadingAuthenticationState>
 
 <BlazoredToasts />