[BUGFIX] Add missing "Display messages" checkbox to admin panel

The checkbox for displaying TypoScript log messages is missing from
the admin panel since TYPO3 version 8.7 and above. This change adds
the missing checkbox again.

Resolves: #81609
Releases: master, 8.7
Change-Id: I830a2b78ba6ef001ed524dd6d5f41f2acb2a27b1
Reviewed-on: https://review.typo3.org/53259


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Jan Stockfisch <jan.stockfisch@googlemail.com>
Reviewed-by: Jasmina Ließmann <code@frauliessmann.de>
Tested-by: Jasmina Ließmann <code@frauliessmann.de>
Reviewed-by: Richard Haeser <richard@maxserv.com>
Tested-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>