Disambiguated between toolkit and platform TitleBar

Author: Arlodotexe

components/TitleBar/tests/ExampleTitleBarTestClass.cs

@@ -5,6 +5,7 @@
 using CommunityToolkit.Tooling.TestGen;
 using CommunityToolkit.Tests;
 using CommunityToolkit.WinUI.Controls;
+using TitleBar = CommunityToolkit.WinUI.Controls.TitleBar;
 
 namespace TitleBarTests;