add groq query to fetch clubs (#197)

apps/site/src/app/(home)/sections/Clubs/getClubs.ts

@@ -0,0 +1,20 @@
+import { z } from "zod";
+import { cache } from "react";
+import { client } from "@/lib/sanity/client";
+import { SanityDocument, SanityImageReference } from "@/lib/sanity/types";
+
+const Clubs = SanityDocument.extend({
+	clubs: z.array(
+		z.object({
+			_type: z.literal("club"),
+			_key: z.string(),
+			name: z.string(),
+			url: z.string().url().optional(),
+			logo: SanityImageReference,
+		}),
+	),
+});
+
+export const getClubs = cache(async () => {
+	return Clubs.parse(await client.fetch("*[_id == 'clubs'][0]"));
+});