Move default app preferences to one screen

- Move emergency and SMS app preferences to default apps
 - Fix search on default apps
 - Make all default app prefs use AppListPreference
 - Some approximate UI work on AppListPreference

Bug: 20210110
Change-Id: Id04086163c7e87c92a03af421a27018fb380b45d

src/com/android/settings/search/Ranking.java

@@ -31,6 +31,7 @@ import com.android.settings.WifiCallingSettings;
 import com.android.settings.WirelessSettings;
 import com.android.settings.accessibility.AccessibilitySettings;
 import com.android.settings.applications.AdvancedAppSettings;
+import com.android.settings.applications.ManageDefaultApps;
 import com.android.settings.bluetooth.BluetoothSettings;
 import com.android.settings.deviceinfo.StorageSettings;
 import com.android.settings.deviceinfo.UsbSettings;
@@ -138,6 +139,7 @@ public final class Ranking {
 
         // Advanced app settings
         sRankMap.put(AdvancedAppSettings.class.getName(), RANK_APPS);
+        sRankMap.put(ManageDefaultApps.class.getName(), RANK_APPS);
 
         // Users
         sRankMap.put(UserSettings.class.getName(), RANK_USERS);