fix: correct rxdart import path

finance_app/lib/database/database.dart

@@ -5,7 +5,7 @@ import 'package:drift/native.dart';
 import 'package:flutter/material.dart'; // Required for Color and IconData in Category
 import 'package:path_provider/path_provider.dart';
 import 'package:path/path.dart' as p;
-import 'package:rxdart/rxdart.dart'; // Import rxdart for combining streams
+import 'package:rxdart/rxdart.dart'; // Corrected import path
 
 // Импортируем модель категории для возвращаемого типа и утилиты
 import '../models/category.dart';