GuidedStepFragments: closer to ux guidlines
1. add left and right paddings for vertialgridview.
2. add rounded corner to ripple drawable for selectable item
3. add theme attribute guidedButtonActionsWidthWeight to adjust
button actions column width
4. crop chevron icon's empty space at four sides
5. make the title font smaller (14sp)
6. adjust top and bottom padding of item to be 14dp and 13dp.
7. add 8dp vertical space between items.
8. add 2dp vertical space between title and description.
Bug: 30308816
Change-Id: I1241128f378f663b29d42850c3ec32da9b60de32
11 files changed
