Fine tune the UI of hamburger Menu

1. Base on the new design, when the provider and app are both existed,
combine them as one item.
2. Rearrange the order of the provider and app roots.
   If the pacakge name of providers or apps contains the preferred
   root source, the order of the root will be higher than others
   that doesn't include it.
3. Enlarge the touch area of action icon (Ex: eject icon).
4. Modify the title color of drawer.

Test: atest DocumentsTest, atest DocumentsUITests
Fix: 118364942
Change-Id: I81dd21894170f3582e1a26fb89b2816d696de1dc