web: centralize prop fetching for live + preview, fix preview banner breakage

web/src/app/aktuelt/page.tsx

@@ -1,33 +1,19 @@
-import { getClient } from "@/app/client";
-import { NewsIndexView } from "@/components/news/NewsIndexView";
 import { Metadata, ResolvingMetadata } from "next";
-import { newsQuery, NewsFragment, NewsIndexFragment } from "@/lib/news";
+import {
+  NewsIndexView,
+  loadNewsIndexProps,
+} from "@/components/news/NewsIndexView";
 import { getSeoMetadata } from "@/lib/seo";
 
 export async function generateMetadata(
-  { params }: { params: Promise<{}> },
+  _: unknown,
   parent: ResolvingMetadata
 ): Promise<Metadata | null> {
-  const { data, error } = await getClient().query(newsQuery, {});
-  if (error) {
-    throw new Error(error.message);
-  }
-  if (!data?.index) {
-    return null;
-  }
-
-  const index = data.index as NewsIndexFragment;
-  const metadata = await getSeoMetadata(index, parent);
-  return metadata;
+  const { index } = await loadNewsIndexProps();
+  return getSeoMetadata(index, parent);
 }
 
 export default async function Page() {
-  const { data, error } = await getClient().query(newsQuery, {});
-  if (error) {
-    throw new Error(error.message);
-  }
-  const news = (data?.news ?? []) as NewsFragment[];
-  const index = data?.index as NewsIndexFragment;
-
-  return <NewsIndexView index={index} news={news} />;
+  const props = await loadNewsIndexProps();
+  return <NewsIndexView {...props} />;
 }