[TASK] Eliminate eslint warnings

Also raise the fixed linters to error level in order
to not introduce similar errors again.

The linter @typescript-eslint/no-explicit-any is disabled for
now, in order for errors to be visible at first glance.

Resolves: #101645
Releases: main, 12.4
Change-Id: I48229f148298ac13acd6d12deb55d606a3c7ef59
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/80500


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benjamin Franzke <ben@bnf.dev>