Fix flicker on first fold after launcher process started

If the device is folded after launcher is started, there will be a frame where unfold animation progress jump from 0 to 1.

This makes the start value of the animator 1.

Test: folded/unfolded after crashing launcher
Bug: 277215354
Change-Id: I3ae4c16b31a0cb045787e890327b1466f98c4218