Group FAQs by a topic relation, ordered; drop unused FAQ teaser

Elternbeirat.Contracts/Page.cs

@@ -90,8 +90,8 @@ public record Page
     ///     Gets the dynamic blocks rendered below the <see cref="Body"/>.
     /// </summary>
     /// <value>
-    ///     Any of <c>"posts"</c>, <c>"events"</c> and <c>"faqs"</c>, or an empty list
-    ///     for a plain text page.
+    ///     Any of <c>"posts"</c> and <c>"events"</c>, or an empty list for a plain
+    ///     text page.
     /// </value>
     [JsonPropertyName("embed")]
     public IReadOnlyList<string> Embed { get; init; } = [];