[CLEANUP] Class aliases clean up

Change-Id: Ia9bea4c41c7db26daa41fc75eed69d4579894c8e
Releases: 3.0.0
Resolves: #59675
Reviewed-on: https://review.typo3.org/30894
Reviewed-by: Fabien Udriot
Tested-by: Fabien Udriot
[CLEANUP] CSS adjustments

Change-Id: I5df92673070d7b5573c49d0a0ac7fdb5d870b754
Releases: 3.0.0
Resolves: #59676
Reviewed-on: https://review.typo3.org/30895
Reviewed-by: Fabien Udriot
Tested-by: Fabien Udriot