Simplify copyToClipboard util

All supported browsers now provide access to the clipboard API
via `navigator.clipboard` so we no longer need to use workarounds
involving textareas etc.

packages/utils/src/utils/index.js

@@ -45,15 +45,7 @@ export function classNames(...args) {
 
 /* istanbul ignore next */
 export const copyToClipboard = text => {
-  const input = document.createElement('textarea');
-  input.value = text;
-  input.setAttribute('readonly', '');
-  input.style.position = 'absolute';
-  input.style.top = '-9999px';
-  document.body.appendChild(input);
-  input.select();
-  document.execCommand('copy');
-  document.body.removeChild(input);
+  navigator.clipboard?.writeText(text);
 };
 
 export function getErrorMessage(error) {