Restore React Router, CSS-in-JS, Helmet demos

Author: dustinsoftware

src/React.Sample.Webpack.CoreMvc/Views/Home/Index.cshtml

@@ -5,8 +5,18 @@
 
 @{
 	Layout = "_Layout";
+	var emotionFunctions = new EmotionFunctions();
+	var styledComponentsFunctions = new StyledComponentsFunctions();
+	var reactJssFunctions = new ReactJssFunctions();
+	var helmetFunctions = new ReactHelmetFunctions();
+
+	var chainedFunctions = new ChainedRenderFunctions(emotionFunctions, styledComponentsFunctions, reactJssFunctions, helmetFunctions);
+}
+@Html.ReactRouter("RootComponent", new { initialComments = Model.Comments, page = Model.Page }, renderFunctions: chainedFunctions)
+@{
+	ViewBag.ServerStyles = styledComponentsFunctions.RenderedStyles + reactJssFunctions.RenderedStyles;
+	ViewBag.HelmetTitle = helmetFunctions.RenderedHelmet?.GetValueOrDefault("title");
 }
-@Html.React("RootComponent", new { initialComments = Model.Comments, page = Model.Page, context = new { } })
 <script src="/dist/runtime.js"></script>
 <script src="/dist/vendor.js"></script>
 <script src="/dist/components.js"></script>