Update preview images

src/routes/+layout.server.ts

@@ -0,0 +1,9 @@
+import { getFromCMS } from '$lib/utils.js';
+
+const thumbnailQuery = `*[_type == "homepage"]{
+	"thumbnail": councilPhoto.asset->url+"?h=800&fm=webp",
+}[0]`;
+
+export const load = async () => {
+	return { thumbnail: (await getFromCMS(thumbnailQuery)).thumbnail };
+};