SettingsIntelligence: Match Settings style

* Also fixes dark style

Change-Id: I42041fbaf754b149a85f22ac46b84f50830d0504
diff --git a/res/layout/search_panel.xml b/res/layout/search_panel.xml
index 5f621cd..82b1e11 100644
--- a/res/layout/search_panel.xml
+++ b/res/layout/search_panel.xml
@@ -25,16 +25,15 @@
         android:id="@+id/search_bar_container"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="@color/search_panel_background"
+        android:background="?android:attr/colorPrimary"
         android:elevation="4dp">
         <androidx.cardview.widget.CardView
             android:id="@+id/search_bar"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_margin="@dimen/search_bar_margin"
-            app:cardCornerRadius="2dp"
-            app:cardBackgroundColor="?android:attr/colorBackground"
-            app:cardElevation="2dp">
+            app:cardCornerRadius="@*android:dimen/config_dialogCornerRadius"
+            app:cardElevation="3dp">
             <Toolbar
                 android:id="@+id/search_toolbar"
                 android:layout_width="match_parent"