Tampermonkey Script for adjusting GTM user interface to full size use

full_size_gtm.user.js

// ==UserScript==
// @name         Full Size GTM
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  adjust GTM user interface to full size use
// @author       MBSL
// @match        https://tagmanager.google.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=google.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    var s = document.createElement('style');
    s.innerHTML = ".gtm-container-page-content-wrapper{flex: 0 1 100%;} .gtm-sheet{max-width:100%!important;transform:none!important} div.sheet-padding{width:100%important}";
    s.innerHTML += "@media (min-width: 1160px) {.gtm-sheet .gtm-sheet-centered .sheet-content, .gtm-sheet .gtm-sheet--centered .sheet-content {width: auto!important;}}";
    document.body.appendChild(s);
})();