message: update error message with optional chanining
diff: @@ -200,6 +200,13 @@ function Advanced({ defaultLang }: { defaultLang: string }) {
  <CodeArea rawData={errorMessageAdvance} />
  </li>
  + <li>
  + <h4>
  + Optional Chaining
  + </h4>
  + {advanced.errorMessage[currentLanguage].optionalChaining}
  + <p />
  + </li>
  <li>
  <h4>
  Lodash <code>get</code>
  