Scoped labels: scoped text needs visible underline on hover

Problem

The scoped text portion of the label doesn’t have a visible underline when text is reversed (white) on the left, but should, for interactive states.

Solution

Figma: https://www.figma.com/file/qEddyqCrI7kPSBjGmwkZzQ/Component-library?node-id=1531%3A2