Add summary back to the homepage

Also update some summaries with new strings.

Bug: 183586663
Test: robotests & atest & visual

Change-Id: I692be9b34e8867501aaa8c8e40428870b99644f8

src/com/android/settings/fuelgauge/TopLevelBatteryPreferenceController.java

@@ -17,7 +17,6 @@
 package com.android.settings.fuelgauge;
 
 import android.content.Context;
-import android.util.FeatureFlagUtils;
 
 import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;
@@ -25,7 +24,6 @@ import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
-import com.android.settings.core.FeatureFlags;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.core.lifecycle.LifecycleObserver;
 import com.android.settingslib.core.lifecycle.events.OnStart;
@@ -87,10 +85,6 @@ public class TopLevelBatteryPreferenceController extends BasePreferenceControlle
     }
 
     private CharSequence getSummary(boolean batteryStatusUpdate) {
-        // Remove homepage summaries for silky home.
-        if (FeatureFlagUtils.isEnabled(mContext, FeatureFlags.SILKY_HOME)) {
-            return null;
-        }
         // Display help message if battery is not present.
         if (!mIsBatteryPresent) {
             return mContext.getText(R.string.battery_missing_message);