Homepage UX revamp

- unified Search and Suggestion behavior between regular phone and two
  pane
- don't adjust padding
- update new icon drawable
- support group homepage preference with round corner on phone
- Remove avator from homepage
- Adjust homepage preference order

Bug: 333989622
Bug: 334130370
Test: visual
Change-Id: I9880b52553f164745766c8b9d5c996585285e52a

src/com/android/settings/widget/HomepagePreferenceLayoutHelper.java

@@ -22,6 +22,7 @@ import androidx.preference.Preference;
 import androidx.preference.PreferenceViewHolder;
 
 import com.android.settings.R;
+import com.android.settings.flags.Flags;
 
 /** Helper for homepage preference to manage layout. */
 public class HomepagePreferenceLayoutHelper {
@@ -39,7 +40,10 @@ public class HomepagePreferenceLayoutHelper {
     }
 
     public HomepagePreferenceLayoutHelper(Preference preference) {
-        preference.setLayoutResource(R.layout.homepage_preference);
+        preference.setLayoutResource(
+                Flags.homepageRevamp()
+                        ? R.layout.homepage_preference_v2
+                        : R.layout.homepage_preference);
     }
 
     /** Sets whether the icon should be visible */