store pornhub gallery results into redis only if search is not empty

src/utils/scrape/pornhub/gallery.ts

@@ -51,7 +51,9 @@ export const fetchPornHubGalleryData = async (params?: FetchParams): Promise<Gal
             })
         })
 
+        if (data.length > 0) {
             await storeDataIntoRedis(queryUrl, data, DEFAULT_PORNHUB_GALLERY_EXPIRY);
+        }
 
     }).catch((error: AxiosError) => {
         // handle errors