`; const blob = new Blob([htmlContent], { type: 'text/html' }); const link = document.createElement('a'); link.download = `notebook-page-${state.currentPage + 1}.html`; link.href = URL.createObjectURL(blob); link.click(); });btnTxt.addEventListener('click', () => { const blob = new Blob([textInput.value], { type: 'text/plain' }); const link = document.createElement('a'); link.download = 'notebook-notes.txt'; link.href = URL.createObjectURL(blob); link.click(); });btnCopyImg.addEventListener('click', async () => { updatePreview(); try { canvas.toBlob(async (blob) => { await navigator.clipboard.write([new ClipboardItem({ 'image/png': blob })]); alert('Current notebook page image copied to clipboard!'); }); } catch (err) { alert('Clipboard image copy not supported in this browser.'); } });btnCopyTxt.addEventListener('click', async () => { try { await navigator.clipboard.writeText(textInput.value); alert('Notes text copied to clipboard!'); } catch (err) { alert('Failed to copy text.'); } });// Initial Render updatePreview(); })();