Olivero style starterkit menu

Creating a nice responsive menu that works well is not easy!

The Olivero menu has some nice features like automatically collapsing to the mobile display when there is not enough space for all the links.

There is an issue here to add a similar menu to starterkit: https://www.drupal.org/project/drupal/issues/3301623 ✨ Add Olivero-like primary navigation to Starterkit theme Needs review