The Layout Builder breadcrumbs for defaults don't lead to the view mode being edited

Problem/Motivation

For all default layouts the bread is the same leading to the bundle edit page.

So to use the breadcrumb to get back to where you clicked "Manage Layout" you have to
click bundle item in breadcrumb
click manage display tab
click display mode tab

Proposed resolution

have breadcrumb's last item be the View Mode for the layout you are editing

Remaining tasks

User interface changes

API changes

Data model changes