Fix b/265746746: Announce "Battery usage for [slot_timestamp]" instead of...

Fix b/265746746: Announce "Battery usage for [slot_timestamp]" instead of changing focus when Talk Back on.

https://drive.google.com/file/d/173RPKsnIE7ZhBAJLrivqkbiWg9Ay41bC/view?usp=sharing&resourcekey=0-jHJ7vZ9BEhzxdWncqCQVQg

Bug: 265746746
Fix: 265746746
Test: manual
Change-Id: Iad92eff50d73853793daa9d6d3551768678c2eb2