Parenthesis showing after language title in changer

Anything?

Well…there are many ways to generate the language option code. Without knowing how it was generated (the actual code used, not the generated html), it would be difficult to fix.
Another alternative is using javascript/jquery to target the <span class=”w-dropdown-item-title”>English ()</span>, something like…

jQuery( document ).ready(function() {
  jQuery("span.w-dropdown-item-title").text(function(index, text) {
      return text.replace("()", "");
  });
});

This code is not tested, and may need tweaking…

Correction to my post above. I just testing my code to your site, and it is working…