[BUGFIX] Indexed Search should use FrontendRestrictionsContainer

Indexed Search still uses enableFields for querying page records,
unlike most other places in the TYPO3 Core. This should be streamlined
because it was forgotten in the initial migration.

Resolves: #81194
Releases: master, 8.7
Change-Id: I0712f6811eefba6d2cb46ed06ff4b1d31ac7fa0b
Reviewed-on: https://review.typo3.org/52768


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Jan Helke <typo3@helke.de>
Tested-by: Jan Helke <typo3@helke.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>