workaround(expressive): Fix padding issues Setup > Vision settings

- Works around issue where Setup and Settings libraries are clashing
  when applying their new expressive themes at the same time.
- Updates illustration prefs to match parent width. Otherwise this new
  padding workaround causes the images to get clipped.

Fix: 390545391
Bug: 400479388
Test: manual only; see screenshots
Flag: EXEMPT using custom flagging from Setup ThemeHelper lib
Change-Id: Ie00cdf3e68a2ff7c40aedd04eb5bed0adaa9cf84