For example when changing display states.
Save view states to solve this issue.
- Save current tab. (System / User)
- Save group expanded state. (Personal / Work)
- Save scrolling position of each group.
Also updated to ViewPager2 and updated the styles.
Bug: 204839552
Test: manual
Change-Id: Ibeda50b50e7dfd2ba071b75fe2aa88ef560f4c88
