Githawk: Delight animation when reacting

[rnystrom]

• Haptic feedback
• "pop" in or bounce the emoji
• top or bottom animation the number change (ala twitter)

Need to consider the transition from 0 to 1 and 1 to 0.

[rnystrom]

Added haptic, gonna punt on animations. I'd like to eventually do something like this.

[rnystrom]

done :)