LPS-45321 - When selecting a new scope in Control Panel we should refresh the portlet being displayed

Hi @JorgeFerrer,

Attached is an update for https://issues.liferay.com/browse/LPS-45321.

The portlet id is now being retrieved using themeDisplay.getPpid(), and there is no longer a check for a null portlet id as it now shouldn't be possible.

Please let me know if there are any issues.

Thanks!