[TASK] Reduce directly invoked inline JavaScript

To decrease the amount of inline JavaScript that has been
generated by some PHP process assignments and invocations
are declared in a more strict way.

This would allow to make use of strict content security policy
denying invocation of unsafe-inline scripts.

Resolves: #91786
Releases: master
Change-Id: I89384d661ebd35a5fda10f9587a7f41db4f587aa
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64123


Tested-by: core-ci <typo3@b13.com>
Tested-by: Torben Hansen <derhansen@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Torben Hansen <derhansen@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>