[BUGFIX] Fixed broken links in file reference list

Changed so file reference list icon and title links don't throw an
exception

The fluid template used a url as a pageUid, which caused typo3 to
throw an exception.

Resolves: #81357
Releases: master, 8.7
Change-Id: Ibbb8d7d51d1b65e9178082f59e34fdfbb501d2fa
Reviewed-on: https://review.typo3.org/52950


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Reviewed-by: Faton Haliti <fha@systime.dk>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>