Restore support for dropdown tooltips

onUiUpdate(function(mutationRecords) {

    for (const record of mutationRecords) {

        if (record.type === "childList" && record.target.classList.contains("options")) {

            // This smells like a Gradio dropdown menu having changed,

            // so let's enqueue an update for the input element that shows the current value.

            let wrap = record.target.parentNode;

            let input = wrap?.querySelector("input");

            if (input) {

                input.title = ""; // So we'll even have a chance to update it.

                tooltipCheckNodes.add(input);

            }

        }

        for (const node of record.addedNodes) {

            if (node.nodeType === Node.ELEMENT_NODE && !node.classList.contains("hide")) {

                if (!node.title) {

                    if (

                        node.tagName === "SPAN" ||

                        node.tagName === "BUTTON" ||

                    node.tagName === "P"

                        node.tagName === "P" ||

                        node.tagName === "INPUT"

                    ) {

                        tooltipCheckNodes.add(node);

                    }

                }

                node.querySelectorAll('span, button, p').forEach(n => tooltipCheckNodes.add(n));

            }

        }