Fix sample frontmatter

[jongalloway]

Change razor to cshtml since razor is not in the list of languages for samples. This is causing an error that prevents listing in the Docs / Samples browser.

[jongalloway]

@jamesmontemagno @Rick-Anderson @guardrex for review

[guardrex]

Why isn't the solution to add razor to the list of languages for samples?

Whatever the case with that, there isn't any cshtml here, per se. I think we'd drop that as a language because anyone filtering for it and finding this repo won't find anything significant in these samples. Just about everything here focuses on Razor components (.razor).

Ah ... that's ok. I mean ... yeah ... there's a smidgen ... _Layout.cshtml, _Host.cshtml, and Error.cshtml. It's not a focus, but that's ok.

Alright, let's go ahead. I hope that they'll add razor as a language later.

Thanks for your help, @jongalloway! 🎷

[jongalloway]

I agree, I'll request to get razor added as a supported language. Just fixing the build errors to get it live first.