LPS-18616 Web Content/ LAR: after importing a LAR, the system will generate a new ID for the content articles even though there are no other articles

Signed-off-by: Zsolt Szabo <zsolt.szabo@liferay.com>
LPS-18616 keep logging info because if articleIds are not autogenerated, then the article id would be kept. However, by default now it is not, so this shouldn't be a warning.

Signed-off-by: Zsolt Szabo <zsolt.szabo@liferay.com>