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

tests/robotests/src/com/android/settings/homepage/TopLevelSettingsTest.java

@@ -16,8 +16,6 @@
 
 package com.android.settings.homepage;
 
-import static com.google.common.truth.Truth.assertThat;
-
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.nullable;
 import static org.mockito.Mockito.doReturn;
@@ -59,11 +57,6 @@ public class TopLevelSettingsTest {
         mSettings.onAttach(mContext);
     }
 
-    @Test
-    public void shouldForceRoundedIcon_true() {
-        assertThat(mSettings.shouldForceRoundedIcon()).isTrue();
-    }
-
     @Test
     public void onCreatePreferences_shouldTintPreferenceIcon() {
         final Preference preference = new Preference(mContext);