LPS-52016 - Migrate Message Boards Admin portlet aui-base javascript

Hi Rob,

Attached is an update for https://issues.liferay.com/browse/LPS-52016.

I implemented the form plugin where I could in configuration.jsp.  But I wasn't able to test the saveEmails function fully.  I don't quite understand the purpose of that method, as the email bodies save without it running.  It always seems to just throw errors that are caught.

Please let me know if there are any issues.

Thanks!