Minor tweak to enter/exit animation for the home activity.

- Fixing issue where the animation props was not applied to the progress
  and callback animations correctly
- Ensuring that all tasks animate the same distance on enter/exit, and 
  not just to the edge of the screen
- Removing unused styles and animation resources

Change-Id: I88bd0f79f386304373fe63b49e92f02eeb882e55