Disabling size animation when switching between lottie animations

Cropping was caused by AnimatedContent automatically animating size.
Lottie animation takes some time to load initially so for a moment is seems that target Composable is empty/very small.

Fixes: 357539003
Test: transition between animations is fluid and not cropped
Flag: com.android.systemui.shared.new_touchpad_gestures_tutorial
Change-Id: I3d0c5c3f5acb5108766c0161193c35ddc5e66738