Feature: #54519 - Report links to disabled linkhandler records

See forge#54519

Description

A new configuration option has been introduced for the linkhandler link checker in the linkvalidator extension:

mod.linkvalidator.linkhandler.reportHiddenRecords = 1

When enabled links will be considered invalid when they point to disabled records. By default only links to deleted records are reported.

Impact

The \TYPO3\CMS\Linkvalidator\Linktype::checkLink() method has been restructured and will now determine if the linked record is deleted or hidden and report a error depending on the reportHiddenRecords configuration.