[FEATURE] Number of files per page in file list configurable

It is now possible to configure the maximum number of files shown per
page in the file list module using User TSconfig.

Releases: master
Resolves: #72923
Change-Id: Ifb4e55f320c0188c69f3dac10d6b5f3cbed12da4
Reviewed-on: https://review.typo3.org/47761


Reviewed-by: Susanne Moog <typo3@susannemoog.de>
Tested-by: Susanne Moog <typo3@susannemoog.de>
Reviewed-by: Nicole Cordes <typo3@cordes.co>
Tested-by: Nicole Cordes <typo3@cordes.co>