Sharesheet - Make ripples consistent

There were differences in ripple behavior depending on the list row
background. Modify this so the ripples propogate against the same
parent background. Make copy button style match the work profile style.

Bug: 129979196
Test: Visual inspection
Change-Id: I51f1b7503c2169bd03f04edecf98927850e6582b

core/java/com/android/internal/app/ChooserActivity.java

@@ -2871,10 +2871,10 @@ public class ChooserActivity extends ResolverActivity {
 
             if (startType != lastStartType
                     || rowPosition == getContentPreviewRowCount() + getProfileRowCount()) {
-                row.setBackground(
+                row.setForeground(
                         getResources().getDrawable(R.drawable.chooser_row_layer_list, null));
             } else {
-                row.setBackground(null);
+                row.setForeground(null);
             }
 
             int columnCount = holder.getColumnCount();

core/res/res/layout/chooser_grid_preview_text.xml

@@ -60,7 +60,7 @@
         android:minWidth="48dp"
         android:minHeight="48dp"
         android:clickable="true"
-        android:background="?android:attr/selectableItemBackgroundBorderless">
+        style="?attr/borderlessButtonStyle">
 
       <ImageView
           android:layout_width="24dp"