Add flag com.android.settings.flags.enable_expressive_bluetooth_battery_header to trunk_staging. This change was automatically created by advancing the Gantry workflow at: https://releasetracker.partner.android.com/changes/82qa0pq000001?build_unique_id=com.android.settings.flags.enable_expressive_bluetooth_battery_header-platform Do not edit this file manually or revert this change - use the Gantry workflow to manage the state of this flag. Bug: 399532172 Flag: com.android.settings.flags.enable_expressive_bluetooth_battery_header Ignore-AOSP-First: AConfig change for future AOSP release Change-Id: I9c06d94552e30cdd7f4cb64687a46ccaad0e2ce6