Add display and notif vis effects to new modes ui

Test: atest com.android.settings.notification.modes
Flag: android.app.modes_ui
Fixes: 337087926
Fixes: 308820151
Change-Id: Id9cd9cc4b2d521713a2ba1d4581eb818ad0e5eee

src/com/android/settings/notification/modes/ZenModeFragment.java

@@ -35,14 +35,14 @@ public class ZenModeFragment extends ZenModeFragmentBase {
 
     @Override
     protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
-        // TODO: fill in with all the elements of this page. Each should be an instance of
-        //       {@link AbstractZenModePreferenceController}.
         List<AbstractPreferenceController> prefControllers = new ArrayList<>();
         prefControllers.add(new ZenModeHeaderController(context, "header", this, mBackend));
         prefControllers.add(new ZenModePeopleLinkPreferenceController(
                 context, "zen_mode_people", mBackend));
         prefControllers.add(new ZenModeOtherLinkPreferenceController(
                 context, "zen_other_settings", mBackend));
+        prefControllers.add(new ZenModeDisplayLinkPreferenceController(
+                context, "mode_display_settings", mBackend));
         return prefControllers;
     }