Misc ui tweaks.

- Update conditional card layout
  - move action button from right side to bottom.
  - Get rid of the forking between small/big screens.

- Update a few icons

Fixes: 121189136
Fixes: 124315564
Fixes: 124316920

Test: visual
Change-Id: I205d9995a2d7ed06ad9d32f3cea74f2840a28aed

tests/robotests/src/com/android/settings/testutils/shadow/ShadowTileUtils.java

@@ -43,6 +43,6 @@ public class ShadowTileUtils {
     @Implementation
     protected static Pair<String, Integer> getIconFromUri(Context context, String packageName,
             String uriString, Map<String, IContentProvider> providerMap) {
-        return Pair.create(RuntimeEnvironment.application.getPackageName(), R.drawable.ic_settings);
+        return Pair.create(RuntimeEnvironment.application.getPackageName(), R.drawable.ic_settings_accent);
     }
 }