TamperMonkey script to add an "open link" button to contacts in the Google Contacts UI

google-contacts-link-buttons

// ==UserScript==
// @name         Add contact page link to Google Contacts
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       nimrodolev
// @match        https://contacts.google.com/*
// @require      https://code.jquery.com/jquery-3.5.1.slim.min.js
// @grant        none
// @downloadURL  https://gist.githubusercontent.com/nimrodolev/6f102608c7229acdf46b402cd9f5d990/raw/google-contacts-link-buttons
// @updateURL    https://gist.githubusercontent.com/nimrodolev/6f102608c7229acdf46b402cd9f5d990/raw/google-contacts-link-buttons
// ==/UserScript==

(function() {
    'use strict';

    function onElementInserted(containerSelector, elementSelector, callback) {
        var onMutationsObserved = function(mutations) {
            mutations.forEach(function(mutation) {
                if (mutation.addedNodes.length) {
                    var elements = $(mutation.addedNodes).find(elementSelector);
                    for (var i = 0, len = elements.length; i < len; i++) {
                        try {
                            callback(elements[i]);
                        }
                        catch(e) {
                            console.log(e);
                        }
                    }
                }
            });
        };

        var target = $(containerSelector)[0];
        var config = { childList: true, subtree: true };
        var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
        var observer = new MutationObserver(onMutationsObserved);
        observer.observe(target, config);
    }
    onElementInserted('body', '[data-id]', (element) => {
        const personId = element.getAttribute("data-id");
        const url = `https://contacts.google.com/person/${personId}`;
        const title = element.querySelector('[role="button"]');
        const anchor = document.createElement('a');
        anchor.style.content = 'url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAQElEQVR42qXKwQkAIAxDUUdxtO6/RBQkQZvSi8I/pL4BoGw/XPkh4XigPmsUgh0626AjRsgxHTkUThsG2T/sIlzdTsp52kSS1wAAAABJRU5ErkJggg==)';
        anchor.style.margin = '0 3px 0 5px';
        anchor.target = '_blank';
        anchor.href = url;
        anchor.onclick = (e) => e.stopPropagation();
        title.appendChild(anchor);

    });
})();

Hello, got to you via a reply of yours in StackExchange
Is this script supposed to still be working?
If so, would you mind helping me troubleshoot why it isn't on my chrome or what I may be missing? Where is the link button? (❁´◡`❁)
Please & Thank you
Narf