Olivero footer can obscure bottom of dropbutton dropdown

The way we force .layout-main-wrapper to have higher z-index than .site-footer causes problems for modal dialogs placed in the footer. I opened a new issue to figure out a solution for this, see 📌 Document that COOKiES UI block should be placed in Content Below region when using Olivero theme Active .

The purpose of this comment here is NOT to re-open this old issue which has already been committed, but to catch the attention of the community members that contributed here so that you can chime in to #3337655.

Cheers,
Markus