LPS-46356 - The selection in Asset Publisher's dropdown could not be choosed if the Publisher has nested Scope

Hi Rob,

Attached is an update for https://issues.liferay.com/browse/LPS-46356.

The second commit I made (d0a5f4a) is the one with the real fix.  The first one is just the reorganization of the asset publisher scope navs that I think we need to do anyway.

Please let me know if there are any issues.

Thanks!