Launch full screen private space setup on Fold when unfolded

This change takes care to launch the private space setup in whole screen
on Fold device whenever the device is unfolded.

Screenshot: go/ss/6D9EwMaLp7LFbsH.png
Recording: b/324260315

Bug: 324260315
Test: Manual
Change-Id: I5bc7b7c8fbc880b6274ddd287a8a169b49843f1b