Bug Fix Round and Updates (#719)

* Kibo missing dependency
* return 404 for invalid page
* fix and simplify types for pages

Co-authored-by: Dominik Sipowicz <dom@vercel.com>

site/pages/[...pages].tsx

@@ -38,8 +38,9 @@ export async function getStaticProps({
   const page = data?.page
 
   if (!page) {
-    // We throw to make sure this fails at build time as this is never expected to happen
-    throw new Error(`Page with slug '${slug}' not found`)
+    return {
+      notFound: true,
+    }
   }
 
   return {
@@ -71,7 +72,7 @@ export async function getStaticPaths({ locales }: GetStaticPathsContext) {
 
 export default function Pages({
   page,
-}: InferGetStaticPropsType<typeof getStaticProps>) {
+}: {page: Page}) {
   const router = useRouter()
 
   return router.isFallback ? (