save token and settings also in sqlite db

lib/navigation/settings_screen.dart

@@ -1,10 +1,11 @@
 import 'package:flutter/material.dart';
-import '../utils/file_formatter.dart';
+import 'package:openmediacentermobile/db/settings_db.dart';
 
 import '../api/token.dart';
 import '../db/database.dart';
 import '../drawer/my_drawer.dart';
 import '../login/login_context.dart';
+import '../utils/file_formatter.dart';
 
 class SettingsScreen extends StatefulWidget {
   const SettingsScreen({Key? key}) : super(key: key);
@@ -24,7 +25,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
           dbsize = v;
         }));
 
-    Token.getInstance().getToken().then((value) => setState(() {
+    getToken().then((value) => setState(() {
           serverUrl = value?.domain ?? "unknown";
         }));
   }
@@ -53,7 +54,8 @@ class _SettingsScreenState extends State<SettingsScreen> {
             ElevatedButton(
                 onPressed: () {
                   loginCtx.onLoggin(false);
-                  Token.getInstance().setToken("", "", "");
+                  SettingsDB.getInstance()
+                      .setSettings(SettingsT("", "", "", 0));
                   Db().clear();
                 },
                 child: Text("Logout"))