Only do content fill anim after layout anim

The new remote animation may start after the tasks are loaded and we
start the content fill animation. This means the layout happens after
and the content fill animation will conflict with the layout animation.
To fix this, we should only do the content fill animation after the
layout animation as intended. If the tasks load before we start the
layout animation, we should just directly update to the latest UI
without animating as the views won't be visible before the layout
animation starts.

Bug: 132381412
Test: Manual test
Change-Id: Ibb55d8ef4499260ffa4bef5c6bba605ffdc85da7