refactor: replace deprecated tseslint.config with defineConfig

The tseslint.config() function was deprecated in favor of ESLint's
native defineConfig() from eslint/config (introduced in ESLint v9.22.0).

Co-Authored-By: Claude

Author: Wintus

eslint.config.js

@@ -1,10 +1,11 @@
+import { defineConfig } from 'eslint/config';
 import js from '@eslint/js';
 import globals from 'globals';
 import reactHooks from 'eslint-plugin-react-hooks';
 import reactRefresh from 'eslint-plugin-react-refresh';
 import tseslint from 'typescript-eslint';
 
-export default tseslint.config(
+export default defineConfig(
 	{ ignores: ['dist'] },
 	{
 		extends: [js.configs.recommended, ...tseslint.configs.recommended],