Restructure into feature folders with code-behind and scoped CSS

Elternbeirat.Web/Features/Pages/ContentPage.razor

@@ -0,0 +1,14 @@
+@page "/{Slug}"
+@inject PageService PageService
+
+@if (_page is null)
+{
+    <PageTitle>Nicht gefunden</PageTitle>
+}
+else
+{
+    <PageTitle>@_page.Title</PageTitle>
+    <article>
+        @((MarkupString)_page.ContentHtml)
+    </article>
+}