LPS-46780 Comments API: transfer all Message Boards references from Blogs JSP files

Hi @marcellustavares!

Lots changed after https://issues.liferay.com/browse/LPS-46460 so I had to remake https://github.com/arboliveira/liferay-portal/pull/15 from scratch.

If all is well please forward to @sergiogonzalez copying @rotty3000. Thanks!