Style and layout changes to match redlines

* Swapped out some icons with newly added assets.
* Changed search view into edit text with accompanying close button
so that it can be more easily styled.
* Changed various background colors.
* Tweaked padding values to match redlines
* Removed margins from PhoneFavoriteRegularRowView and PhoneFavoriteTileView
and instead use a standardized set of margins for all rows in
PhoneFavoritesTileAdapter
* Added bottom_border_background drawable to create a bordered background.
* Remove PhoneFavoritesTileAdapter.ViewTypes.STARRED/STARRED_PHONE since
they are no longer relevant

Change-Id: I65dfd5adf6cfbcb2c9d283aef2bd10e5d2a82dc7