[TECH SUPPORT] LPS-46625 Unable to add localized friendly URL when the page creator is deleted

Hi Tibi,

Beside using the serviceContext to get the userId (https://github.com/akosthurzo/liferay-portal/commit/a294152706e842fd1b2bb5e2d8c99b0abddce6c7), I introduced a new updateFriendlyURL method (https://github.com/akosthurzo/liferay-portal/commit/7ecf78af98ca6b1963e41741cc24762ca2f48739) which has a userId parameter. Now all the callers are responsible for passing a valid userId or at least for making sure they do not add new friendly URLs (only updating the existing ones).

Please review my changes.

Thanks,
Ákos