I figured it out. You need to add to each WPF .xaml.cs file that is referencing a Blazor .razor file:
var serviceCollection = new ServiceCollection();
serviceCollection.AddWpfBlazorWebView();
serviceCollection.AddBlazorise(options =>
{
//options.ChangeTextOnKeyPress = true; // optional
})
.AddBootstrapProviders()
.AddFontAwesomeIcons();
I would hope Microsoft development would enhance BlazorWebView to reference the index.html for services as oppose to copying essentially the same code into each and every WPF .xmal.cs file.
Thank you so much for pointing me in the right direction!