Enable some settings pages to use paralleled-loading method

- Here these pages include AppInfoDashboardFragment, ConnectedDeviceDashboardFragment,
  DevelopmentSettingsDashboardFragment, NetworkDashboardFragment, ConfigureNotificationSettings.
- The TimeSpentInAppPreferenceController use the LiveDataController.

Fixes: 135299529
Bug: 137558156
Test: compilation
Change-Id: I455a16536c9966184f1b2bd81d1f1217f3e09f9d

tests/robotests/src/com/android/settings/applications/appinfo/TimeSpentInAppPreferenceControllerTest.java

@@ -119,8 +119,8 @@ public class TimeSpentInAppPreferenceControllerTest {
     }
 
     @Test
-    public void getSummary_shouldQueryAppFeatureProvider() {
-        mController.getSummary();
+    public void getSummaryTextInBackground_shouldQueryAppFeatureProvider() {
+        mController.getSummaryTextInBackground();
 
         verify(mFeatureFactory.applicationFeatureProvider).getTimeSpentInApp(
                 nullable(String.class));