Description of problem:

After upgrade to PF5, CSS for the monaco editor interferes with YAML editors in OpenShift console, introducing a visible line after the first line of YAML.

More information about the background of this change is here:

https://docs.google.com/document/d/10knQoLikr0RhPR5JJ8uae3KQjDs5FDbD_aUK2EYG13A/edit?tab=t.0#heading=h.hl8u4126a7gv

Version-Release number of selected component (if applicable):

ACM 2.13

How reproducible:

Always