[TASK] Use codemirror-minified package

CodeMirror is offered as a minified version. As there is no benefit of
using a "full-blown" version, switch to minified version instead.

Resolves: #82204
Releases: master
Change-Id: I8e15e1ea8266951430ebeb86445b3cd2db524caf
Reviewed-on: https://review.typo3.org/53806


Tested-by: TYPO3com <no-reply@typo3.com>
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>