[TASK] Migrate constant editor JavaScript to jQuery

In our efforts to migrate all old-school JS to jQuery
RequireJS modules, there are a few small JS functions
related to the TypoScript constant editor which are
replaced by a proper RequireJS Module.

Resolves: #62624
Releases: master
Change-Id: Id0d5e4a986f0b94ef399da84ff20c0a026c7d795
Reviewed-on: http://review.typo3.org/33671
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Benjamin Mack <benni@typo3.org>
Tested-by: Benjamin Mack <benni@typo3.org>