Implement loading spinner and Polish translations: add Spinner component for loading states in Search and SearchList, update UI text to Polish for improved localization, and enhance Pagination styles for better visibility.

src/app/(withGlobalData)/search/page.tsx

@@ -11,7 +11,7 @@ export default async function SearchPage({
     <>
       <section className="container">
         <h1 className="text-2xl">
-          Search for: <strong>{s}</strong>
+          Wyszukiwanie: <strong>{s}</strong>
         </h1>
       </section>
       <SearchList query={s} />