Require screen to be unlocked for smart replies

Currently tapping on a smart reply works even when the screen is
locked. To make it consistent with inline replies, require the screen
to be unlocked before sending the reply.

Bug: 76217177
Test: atest SmartReplyViewTest
Change-Id: I3af8a0411537503650fb9f83cd99f65900e700e0
6 files changed