If the admin visits the constants editor the 1st time or the user
settings are resetted, the constants editor must show the constants of
the 1st category.

Resolves: #97603
Releases: main
Change-Id: Ib05ed79a4e79859f5bc5229fd4a50a24f4ce1805
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/74600


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Georg Ringer <georg.ringer@gmail.com>