fix: fetch 13 articles so Latest grid shows 12 after hero filter; hide Load More when all articles already loaded

components/article/LoadMoreButton.tsx

@@ -7,13 +7,14 @@ import ArticleCard from './ArticleCard'
 interface Props {
   categorySlug: string
   initialCount: number
+  hasMore?: boolean
 }
 
-export default function LoadMoreButton({ categorySlug, initialCount }: Props) {
+export default function LoadMoreButton({ categorySlug, initialCount, hasMore: initialHasMore = true }: Props) {
   const [articles, setArticles] = useState<Article[]>([])
   const [offset, setOffset] = useState(initialCount)
   const [loading, setLoading] = useState(false)
-  const [hasMore, setHasMore] = useState(true)
+  const [hasMore, setHasMore] = useState(initialHasMore)
 
   async function loadMore() {
     setLoading(true)