feat: web login page (#1058)

ui/flutter/lib/database/database.dart

@@ -6,10 +6,10 @@ import 'package:hive/hive.dart';
 import 'entity.dart';
 
 const String _startConfig = 'startConfig';
-const String _lastRunningConfig = 'lastRunningConfig';
 const String _windowState = 'windowState';
 const String _bookmark = 'bookmark';
 const String _createHistory = 'createHistory';
+const String _webToken = 'webToken';
 
 class Database {
   static final Database _instance = Database._internal();
@@ -82,6 +82,14 @@ class Database {
     });
   }
 
+  void saveWebToken(String token) {
+    save<String>(_webToken, token);
+  }
+
+  String? getWebToken() {
+    return get<String>(_webToken, (json) => json.toString());
+  }
+
   void saveCreateHistory(String url) {
     var list = getCreateHistory() ?? [];
     list.remove(url);