There's something a little weird happening with the list items, where the indicator for the last-selected item with the arrow keys is visually conflicting with whichever list item is being hovered

I don't know what the plan is for the story rollout, so if this isn't a concern for now, I can approve this regardless

My main concern is using Stories to cement functionality we know for a fact is wonky. Though if the Storybook actions are powerful enough, maybe we could include checks for things like this (if not now, then down the line)

I've opened an issue (#12482) to track the weird selection state so that we can take care of it later, but for now, since it's already in the app and no one has complained yet, I don't want to block adding the story on fixing it.