[TASK] Move BackendController addInlineSettings calls to _construct

Move calls to addInlineSettings out of the foreach loop, and place them
together with other similar calls.

Resolves: #82781
Releases: master
Change-Id: Ia2269833f7649559a1552a9290773984bebcc102
Reviewed-on: https://review.typo3.org/54413


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>