Fix the overview tutorial step success animation

- Tapping the screen after a successful overview gesture, but before the delayed success feedbck created a janky experience
- Immediately setting the gesture as successful

Flag: ENABLE_NEW_GESTURE_NAV_TUTORIAL
Fixes: 281742006
Test: tapped the screen quickly after successfully completing the overview gesture
Change-Id: I166060191753d6b95bc223e2be08df2bb4b4ecfd