LPS-42288  Check if portlet configuration was actually exported when All Applications import option is selected

Hey Máté,

Previous solution for LPS-42288 failed if All Applications option was enabled in the import process. In that case any portlet configuration included in the lar file was imported, even if the manifest declares that it was excluded in the export process. So for this case we also have to check in the manifestSummary if the portlet configuration was actually exported or not.

Thanks

@juliocamarero
@KocsisDaniel