fix: extra ")}" in 500 error page

The 500 page included ugly ")}" characters.

cms/templates/500.html

@@ -29,7 +29,6 @@ ${Text(_("{studio_name} Server Error")).format(
           studio_name=Text(settings.STUDIO_SHORT_NAME),
         )}
         ${_("We've logged the error and our staff is currently working to resolve this error as soon as possible.")}
-        )}
       </p>
     </article>
   </section>