Output folder meta information (file count and
total file size) next to the folder path in Filelist again.
Additionally fix a typo in a condition above.

Resolves: #83528
Releases: master, 8.7
Change-Id: I6969966405655d54528059ec937018078caea9d9
Reviewed-on: https://review.typo3.org/55318


Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Tested-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>