Switched to MPA powered by Razor Pages

After reconsidering where I want to take this project, I realized that a MPA is more fitting.

Props/TagHelpers/NavLinkTagHelper.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Linq;
+using System.Text.Encodings.Web;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.Routing;
+using Microsoft.AspNetCore.Mvc.TagHelpers;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
+using Microsoft.AspNetCore.Razor.TagHelpers;
+
+namespace Props.TagHelpers
+{
+    public class NavLinkTagHelper : AnchorTagHelper
+    {
+        private IUrlHelperFactory urlHelperFactory;
+        private IUrlHelper urlHelper;
+        public NavLinkTagHelper(IHtmlGenerator generator, IUrlHelperFactory urlHelperFactory) : base(generator)
+        {
+            this.urlHelperFactory = urlHelperFactory;
+        }
+
+        public override void Init(TagHelperContext context)
+        {
+            this.urlHelper = urlHelperFactory.GetUrlHelper(ViewContext);
+            base.Init(context);
+        }
+
+        public string ActiveClass { get; set; } = "active";
+
+        public override void Process(TagHelperContext context, TagHelperOutput output)
+        {
+            base.Process(context, output);
+            TagHelperAttribute dest;
+            if (output.Attributes.TryGetAttribute("href", out dest) && urlHelper.RouteUrl(ViewContext.RouteData.Values).Equals(dest.Value))
+            {
+                output.AddClass(ActiveClass, HtmlEncoder.Default);
+                output.Attributes.Add("aria-current", "page");
+                output.Attributes.RemoveAll("href");
+            }
+            output.TagName = "a";
+        }
+    }
+}