Set up Import and Export data

It's time to update the HTML for the Order section. Open Order.js and find the render method; before the line document.querySelector("#order").innerHTML = html;, add the following snippet:

    if (window.showOpenFilePicker) {
        html += `
            <a class="navlink material-symbols-outlined" 
                href="javascript:Order.importCart()" style="color: var(--primaryColor")>
                file_upload
            </a>
            <a class="navlink material-symbols-outlined"  
                href="javascript:Order.exportCart()" style="color: var(--primaryColor")>
                file_download
            </a>
        `;
    }