[BUGFIX] Correct type of argument passed to BackendUtility::viewOnClick

Third argument passed to BackendUtility::viewOnClick should be
an array or null.

Resolves: #82124
Releases: master, 8.7
Change-Id: I330d2fcbbc30d9f22f4758ad84599755a1d707ad
Reviewed-on: https://review.typo3.org/53721


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>