[AnimatedAction] Fix the issue so that only text replied (the choice text...

[AnimatedAction] Fix the issue so that only text replied (the choice text without attribution text) appears after the animated reply button is clicked.

change:
- If the tapped button is animated reply, then use the choice pure text (should not use button.text as it includes attribution text).
- Otherwise, keep the existing behavior(use button.text ).

Bug: 383567383
Test: atest SmartReplyViewTest
Flag: com.android.systemui.notification_animated_actions_treatment
Change-Id: I97d02cd5027619420064b0f24a65b2af334fed78