Change a H5 with a specific ID to an H2 instead

fix-plugin-header-level.js

// Get the <h5> element with the ID #plugin-block-heading1
const h5Element = document.getElementById('plugin-block-heading1');

if (h5Element) {
    // Create a new <h2> element
    const h2 = document.createElement('h2');
    
    // Copy the content of the <h5> to the <h2>
    h2.innerHTML = h5Element.innerHTML;
    
    // Replace the <h5> element with the new <h2> element
    h5Element.parentNode.replaceChild(h2, h5Element);
}