fix: Missing theming for csharp

Author: linkdotnet

src/LinkDotNet.Blog.Web/App.razor

@@ -28,6 +28,7 @@
     <link href="css/icons.css" rel="stylesheet" />
     <link rel="preload" href="LinkDotNet.Blog.Web.styles.css" as="style">
     <link href="LinkDotNet.Blog.Web.styles.css" rel="stylesheet"/>
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/styles/github-dark-dimmed.min.css" integrity="sha512-zcatBMvxa7rT7dDklfjauWsfiSFParF+hRfCdf4Zr40/MmA1gkFcBRbop0zMpvYF3FmznYFgcL8wlcuO/GwHoA==" crossorigin="anonymous" referrerpolicy="no-referrer" />
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.7/css/bootstrap.min.css" integrity="sha512-fw7f+TcMjTb7bpbLJZlP8g2Y4XcCyFZW8uy8HsRZsH/SwbMw0plKHFHr99DN3l04VsYNwvzicUX/6qurvIxbxw==" crossorigin="anonymous" referrerpolicy="no-referrer" />
     <link href="_content/Blazorise/blazorise.css" rel="stylesheet" />
 </head>
@@ -55,7 +56,7 @@
 @code {
     [Inject]
     private IOptions<ApplicationConfiguration> AppConfiguration { get; set; } = default!;
-    
+
     [Inject]
     private IWebHostEnvironment Environment { get; set; } = default!;
 }