fix: improved copy text helper function (#8677)

react/features/base/buttons/CopyButton.js

 
 import React, { useState } from 'react';
 
-import { translate } from '../../base/i18n';
 import { Icon, IconCheck, IconCopy } from '../../base/icons';
-import { copyText } from '../../base/util';
+import { translate } from '../i18n';
+import { copyText } from '../util';
 
 
 type Props = {

react/features/base/util/helpers.js

  * @param {string} textToCopy - Text to be copied.
  * @returns {boolean}
  */
-export function copyText(textToCopy: string) {
-    const fakeTextArea = document.createElement('textarea');
+export async function copyText(textToCopy: string) {
     let result;
 
-    // $FlowFixMe
-    document.body.appendChild(fakeTextArea);
-    fakeTextArea.value = textToCopy;
-    fakeTextArea.select();
-
     try {
-        result = document.execCommand('copy');
+        result = await navigator.clipboard.writeText(textToCopy);
     } catch (err) {
         result = false;
     }
 
-    // $FlowFixMe
-    document.body.removeChild(fakeTextArea);
-
     return result;
 }