Function save

src/components/Notepad.tsx:36–41

()

  }, [text]);

  const save = () => {
    const now = new Date();
    localStorage.setItem(STORAGE_KEY, JSON.stringify({ text, ts: now.toISOString() }));
    setSaved(true);
    setLastSaved(now);
  };

  const clear = () => {
    setText("");