function updateTab(html) {
    // Empty the current sidebar UI master element
    sbEl.innerHTML = ''
    // TODO: Needs better config
    // Replace with the new HTML - but sanitise it first
    // sbEl.innerHTML = DOMPurify.sanitize(html, purifyOpts) // eslint-disable-line no-undef
    sbEl.innerHTML = html
}
Update the sidebar UI tab with new HTML content
@param {string} html - The new HTML to display in the sidebar UI