LPS-43967 - DDL - Iframe remains open after clicking to Add a translation to a Record

Hi @marclundgren,

Attached is an update for https://issues.liferay.com/browse/LPS-43967.

I had to add a redirect page ('update_translation_redirect.jsp') to DDL, like it is done in Web Content.

But for some reason, it has been working on my machine but not quite right on Jon's machine.  I tried some suggestions Jon made in this pull: https://github.com/jonmak08/liferay-portal/pull/744.

Please let me know if there are any issues.

Thanks!