feat: add sonner for notifications and update theme handling in Toaster component

src/pages/SoundboardPage.tsx

@@ -68,7 +68,7 @@ const SoundCard: React.FC<SoundCardProps> = ({ sound, onPlay, isPlaying }) => {
   );
 };
 
-export default function SoundboardPage() {
+export function SoundboardPage() {
   const [sounds, setSounds] = useState<Sound[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);