UI: Fix Yami list widget hover color

[cg2121]

Description

With Yami, when hovering a list widget (ie. scenes/settings), the background wouldn't change like the sources list.

Motivation and Context

Fix Yami bugs

How Has This Been Tested?

Hovered over list widgets

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• [x] My code has been run through clang-format.
• [x] I have read the contributing document.
• [x] My code is not on the master branch.
• [x] The code has been tested.
• [x] All commit messages are properly formatted and commits squashed where appropriate.
• [x] I have included updates to all appropriate documentation.