fix(route/kemono): fix items parsing logic (#18291)

lib/routes/kemono/index.ts

@@ -97,7 +97,8 @@ async function handler(ctx) {
         const author = isPosts ? '' : await getAuthor(currentUrl, headers);
         title = isPosts ? 'Kemono Posts' : `Posts of ${author} from ${source} | Kemono`;
         image = isPosts ? `${rootUrl}/favicon.ico` : `https://img.kemono.su/icons/${source}/${id}`;
-        items = response.data
+        const responseData = isPosts ? response.data.posts : response.data;
+        items = responseData
             .filter((i) => i.content || i.attachments)
             .slice(0, limit)
             .map((i) => {