Fix overview grid scroll problem

- This can be reproduced ocassionally without any obvious pattern, when this happen the page scroll and min/max scroll is messed up
- When this happen, onLayout happens before the first setGridProgress call from animations
- The fix is to request a relayout at the end of state transition

Bug: 174464863
Test: manual
Change-Id: I12683c49d7ed72349a4b9cb3b4d3871741e3e22e