message: fix: copy code-samples included \n\r characters
  fixes
diff: @@ -27,7 +27,10 @@ export class CopyButton implements OnInit {
  onClick() {
  let copied;
  if (this.copyText) {
  - copied = Clipboard.copyCustom(JSON.stringify(this.copyText, null, 2));
  + const text = (typeof this.copyText === 'string')
  + ? this.copyText
  + : JSON.stringify(this.copyText, null, 2);
  + copied = Clipboard.copyCustom(text);
  } else {
  copied = Clipboard.copyElement(this.copyElement);
  }
  