refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -6,7 +6,7 @@
   <ItemGroup>
     <PackageVersion Include="FodyHelpers" Version="6.9.1" />
     <PackageVersion Include="Fody" Version="6.9.2" />
-    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.2" />
+    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.5" />
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.8" />
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.8" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.2" />