[Expressive Battery] Implement the expressive style for anomaly hint chip

For expressive style:
- Update the padding start & end of pref with anomaly hint
- Add the new background res to update anomaly hint style to outlined
- Reduce the vertical space between pref text and anomaly hint.

Bug: 349652542
Test: visual
Flag: com.android.settingslib.widget.theme.flags.is_expressive_design_enabled
Change-Id: Iec9240d2edba5042c5a1f740b662db75bea41d0e