Playing with animations. Using animation on setMaxLines is working but
isn't smooth, so it seems we should instead use an animation on the
height.

For next time, we should use a view that is not visible to the
user, set the text to be the same as the textview we are trying to
animate, and finally get the height. This view should have the same
height as what we want to animate our own view to, so then we can just
animate the visible textview to this height