Some code in HMENU stems back from TYPO3 v3.x days,
and this code aims to streamline the functionality
given current functionality.

HMENU now has its own sys_page object, which should
be used. In addition, HMENU should fetch TSFE->id
consistently across all its code base.

Resolves: #96492
Releases: main, 11.5
Change-Id: I971a5958417077d51ea5c5070fc4b9ef513cd738
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/72936


Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Benni Mack <benni@typo3.org>