This caused the entire list view to e animated when navigating
back to the Available tab. Tried switching the `animateLayoutChanged=true`
to a child view only containing the category spinner, but this is not how
the animation handling works. It needs to animate both the thing being
hidden/shown, and also the next sibling of that thing to work properly.
Thus, moving the spinner to its own child and leaving the list didn't work.
58205fefec