Fixing the dreaded XAML parsing failed

Fixing my XAML Parsing Failed bug (subfolders) This is a doozy, and is about the last possible bug one would imagine in the new WinUI3 that Microsoft is pushing for us to use when making apps for Windows. The background when you make an app using C# (and really, why wouldn't you?), you will use the XAML mini-language for describing your layout. XAML has conceptually been around for years, but…