Inline code to drop namespace (#33969)

Author: guardrex

aspnetcore/blazor/tutorials/build-a-blazor-app.md

@@ -196,37 +196,73 @@ Add a `TodoItem.cs` file to the root of the project (the `TodoList` folder) to h
 
 :::moniker range=">= aspnetcore-9.0"
 
-:::code language="csharp" source="~/../blazor-samples/9.0/BlazorSample_WebAssembly/TodoItem.cs":::
+```csharp
+public class TodoItem
+{
+    public string? Title { get; set; }
+    public bool IsDone { get; set; }
+}
+```
 
 :::moniker-end
 
 :::moniker range=">= aspnetcore-8.0 < aspnetcore-9.0"
 
-:::code language="csharp" source="~/../blazor-samples/8.0/BlazorSample_WebAssembly/TodoItem.cs":::
+```csharp
+public class TodoItem
+{
+    public string? Title { get; set; }
+    public bool IsDone { get; set; }
+}
+```
 
 :::moniker-end
 
 :::moniker range=">= aspnetcore-7.0 < aspnetcore-8.0"
 
-:::code language="csharp" source="~/../blazor-samples/7.0/BlazorSample_WebAssembly/build-a-blazor-app/TodoItem.cs":::
+```csharp
+public class TodoItem
+{
+    public string? Title { get; set; }
+    public bool IsDone { get; set; }
+}
+```
 
 :::moniker-end
 
 :::moniker range=">= aspnetcore-6.0 < aspnetcore-7.0"
 
-:::code language="csharp" source="~/../blazor-samples/6.0/BlazorSample_WebAssembly/build-a-blazor-app/TodoItem.cs":::
+```csharp
+public class TodoItem
+{
+    public string? Title { get; set; }
+    public bool IsDone { get; set; }
+}
+```
 
 :::moniker-end
 
 :::moniker range=">= aspnetcore-5.0 < aspnetcore-6.0"
 
-:::code language="csharp" source="~/../blazor-samples/5.0/BlazorSample_WebAssembly/build-a-blazor-app/TodoItem.cs":::
+```csharp
+public class TodoItem
+{
+    public string Title { get; set; }
+    public bool IsDone { get; set; }
+}
+```
 
 :::moniker-end
 
 :::moniker range="< aspnetcore-5.0"
 
-:::code language="csharp" source="~/../blazor-samples/3.1/BlazorSample_WebAssembly/build-a-blazor-app/TodoItem.cs":::
+```csharp
+public class TodoItem
+{
+    public string Title { get; set; }
+    public bool IsDone { get; set; }
+}
+```
 
 :::moniker-end