Folder UI fixes

> Fixing top padding (b/21304523)
> Alinging the label and page indicators to the icons
> Fixing folder label alingment in RTL (b/21445821)
> Updating footer animation (b/21336853)

Bug: 21304523, 21445821, 21336853
Change-Id: I2cf3a48c76653b19437b31252d6ee559ce798094