Updater: Use androidx for PreferenceManager

import android.content.Intent;

import android.content.SharedPreferences;

import android.os.SystemClock;

import android.preference.PreferenceManager;

import android.util.Log;

import androidx.core.app.NotificationCompat;

import androidx.preference.PreferenceManager;

import org.json.JSONException;

import org.lineageos.updater.download.DownloadClient;

import android.os.BatteryManager;

import android.os.Build;

import android.os.PowerManager;

import android.preference.PreferenceManager;

import android.text.SpannableString;

import android.text.format.Formatter;

import android.text.method.LinkMovementMethod;

import androidx.appcompat.view.menu.MenuBuilder;

import androidx.appcompat.view.menu.MenuPopupHelper;

import androidx.appcompat.widget.PopupMenu;

import androidx.preference.PreferenceManager;

import androidx.recyclerview.widget.RecyclerView;

import com.google.android.material.snackbar.Snackbar;

import android.os.Environment;

import android.os.SystemProperties;

import android.os.storage.StorageManager;

import android.preference.PreferenceManager;

import android.util.Log;

import android.widget.Toast;

import androidx.preference.PreferenceManager;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;