[BUGFIX] Suggest wizard is behind form inputs

Change-Id: I5a847fe0024161f40f541a7d1ebe120ec9a8e7a5
Fixes: #42092
Releases: 4.5, 4.6, 4.7, 6.0, 6.1
Reviewed-on: https://review.typo3.org/15767
Reviewed-by: Xavier Perseguers
Tested-by: Xavier Perseguers