yandex-disk-keys.user.js

// ==UserScript==
// @name         Yandex Disk delete shortcut
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       DKunin
// @match        https://disk.yandex.ru/client/disk/*
// ==/UserScript==

(function() {
    'use strict';
    document.body.addEventListener('keydown', (event) => {
        if(event.key === 'Backspace' && event.metaKey) {
            document.querySelector('[data-click-action="resource.delete"]').click();
        };
    });
})();

What exactly does this script do?