Added basic configuration

testing/HopFrame.Testing/Components/Layout/MainLayout.razor

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+@inherits LayoutComponentBase
+
+<FluentLayout>
+    <FluentHeader>
+        HopFrame.Testing
+    </FluentHeader>
+    <FluentStack Class="main" Orientation="Orientation.Horizontal" Width="100%">
+        <NavMenu/>
+        <FluentBodyContent Class="body-content">
+            <div class="content">
+                @Body
+            </div>
+        </FluentBodyContent>
+    </FluentStack>
+    <FluentFooter>
+        <a href="https://www.fluentui-blazor.net" target="_blank">Documentation and demos</a>
+        <FluentSpacer/>
+        <a href="https://learn.microsoft.com/en-us/aspnet/core/blazor" target="_blank">About Blazor</a>
+    </FluentFooter>
+</FluentLayout>
+
+<div id="blazor-error-ui" data-nosnippet>
+    An unhandled error has occurred.
+    <a href="." class="reload">Reload</a>
+    <span class="dismiss">🗙</span>
+</div>

testing/HopFrame.Testing/Components/Layout/NavMenu.razor

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+@rendermode InteractiveServer
+
+<div class="navmenu">
+    <input type="checkbox" title="Menu expand/collapse toggle" id="navmenu-toggle" class="navmenu-icon"/>
+    <label for="navmenu-toggle" class="navmenu-icon">
+        <FluentIcon Value="@(new Icons.Regular.Size20.Navigation())" Color="Color.Fill"/>
+    </label>
+    <nav class="sitenav" aria-labelledby="main-menu">
+        <FluentNavMenu Id="main-menu" Collapsible="true" Width="250" Title="Navigation menu" @bind-Expanded="expanded" CustomToggle="true">
+            <FluentNavLink Href="/" Match="NavLinkMatch.All" Icon="@(new Icons.Regular.Size20.Home())" IconColor="Color.Accent">Home</FluentNavLink>
+            <FluentNavLink Href="counter" Icon="@(new Icons.Regular.Size20.NumberSymbolSquare())" IconColor="Color.Accent">Counter</FluentNavLink>
+            <FluentNavLink Href="weather" Icon="@(new Icons.Regular.Size20.WeatherPartlyCloudyDay())" IconColor="Color.Accent">Weather</FluentNavLink>
+        </FluentNavMenu>
+    </nav>
+</div>
+
+@code {
+    private bool expanded = true;
+}