[TASK] Center Icon in input-group-addon by selectMultipleSideBySide

Replace '.input-group-addon' with '.input-group-text'

Resolves: #95148
Releases: master
Change-Id: I3d855d93da79e8edd39d77ead46fe4637639decd
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70966


Tested-by: core-ci <typo3@b13.com>
Tested-by: Dennis Prinse <dennis.prinse@maxserv.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Dennis Prinse <dennis.prinse@maxserv.com>
Reviewed-by: Benni Mack <benni@typo3.org>