[TASK] Refactor AdminPanel JavaScript

- move to namespaced functions
- remove console log on copy

Prerequisite for further bug fixes.

Resolves: #86744
Releases: master
Change-Id: I7647cd7b75bab999680806fc65dddcec9271717f
Reviewed-on: https://review.typo3.org/58699


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>