Show Hotspot informations in Network details settings

- Show Hotspot device type in hearder icon

- Show Hotspot device details informations.
  - Internet source (network type)
  - Battery

Bug: 297346368
Test: manual test
atest -c WifiNetworkDetailsFragmentTest \
         WifiDetailPreferenceController2Test
atest -c SharedConnectivityRepositoryTest \
         WifiNetworkDetailsViewModelTest

Change-Id: I4bd090e00681911c8fac469289fd818237b8c518

src/com/android/settings/wifi/repository/SharedConnectivityRepository.java

@@ -58,8 +58,7 @@ public class SharedConnectivityRepository {
     MutableLiveData<SharedConnectivitySettingsState> mSettingsState = new MutableLiveData<>();
 
     public SharedConnectivityRepository(@NonNull Context appContext) {
-        this(appContext,
-                DeviceConfig.getBoolean(DEVICE_CONFIG_NAMESPACE, DEVICE_CONFIG_KEY, false));
+        this(appContext, isDeviceConfigEnabled());
     }
 
     @VisibleForTesting
@@ -181,4 +180,11 @@ public class SharedConnectivityRepository {
     private void log(String msg) {
         FeatureFactory.getFeatureFactory().getWifiFeatureProvider().verboseLog(TAG, msg);
     }
+
+    /**
+     * Returns true if Shared Connectivity feature is enabled.
+     */
+    public static boolean isDeviceConfigEnabled() {
+        return DeviceConfig.getBoolean(DEVICE_CONFIG_NAMESPACE, DEVICE_CONFIG_KEY, false);
+    }
 }