Use SceneTransitionLayout to animate clocks.

Animates the transition between small clock and large clock and vice
versa using SceneTransitions.

Test: Switch between small clock and large clock and vice versa
Flag: ACONFIG com.android.systemui.compose_lockscreen DEVELOPMENT
Bug: 325301969

Change-Id: I5143e2fa95c68327dd0f004ac39791b0303103e0