fix schema

Author: KianNH

src/components/AvailableChangelogFeeds.astro

@@ -30,6 +30,7 @@ const productsByGroup = Object.entries(
 <AnchorHeading depth={3} title="Global feed" />
 <p>
 	This feed contains entries for all Cloudflare products in the changelog: <RSSButton
+		changelog="index"
 	/>
 </p>
 

src/components/RSSButton.astro

@@ -6,8 +6,7 @@ const props = z
 	.object({
 		changelog: z
 			.string()
-			.transform((val) => val.toLowerCase().replaceAll(" ", "-"))
-			.default("index"),
+			.transform((val) => val.toLowerCase().replaceAll(" ", "-")),
 	})
 	.or(
 		z.object({