start (actual) email auth, add CancellationToken to most async methods

Foxnouns.Backend/Views/Mail/Example.cshtml

@@ -0,0 +1,15 @@
+@{
+   ViewBag.Heading = "Welcome!";
+   ViewBag.Preview = "Example Email";
+}
+
+<p>
+   Let's see what you can build!
+   To render a button inside your email, use the EmailLinkButton component:
+   @await Component.InvokeAsync("EmailLinkButton", new  { text = "Click Me!", url = "https://www.google.com" })
+</p>
+
+@section links
+{
+   <a href="https://github.com/jamesmh/coravel">Coravel</a>
+}

Foxnouns.Backend/Views/Mail/_ViewImports.cshtml

@@ -0,0 +1,3 @@
+@using Foxnouns.Backend
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+@addTagHelper *, Coravel.Mailer.ViewComponents

Foxnouns.Backend/Views/Mail/_ViewStart.cshtml

@@ -0,0 +1,3 @@
+@{
+    Layout = "~/Areas/Coravel/Pages/Mail/Template.cshtml";
+}