Tune AllApps dismiss animation

- Avoid overriding interpolator in AllAppsTransitionController.setStateWithAnimation as it's no longer needed and it'll wrongly override interpolator for ANIM_ALL_APPS_FADE
- Override ANIM_ALL_APPS_FADE to FINAL_FRAME in QuickstepAtomicAnimationFactory for tap deadzone to dismiss animation, also added EMPHASIZED_ACCELERATE for the dismiss animation
- Tuned dismiss animation across form factors to 300ms

Fix: 220336617
Test: manual
Change-Id: I4b3e827b503dcb1dd39f0bd99d4c1dd5ffdba0f3