chore(examples/demo/eslint): migrate eslint configuration .eslintrc.c…

…js to eslint.config.js

examples/demo/eslint.config.js

@@ -0,0 +1,36 @@
+import eslint from '@eslint/js'
+import react from 'eslint-plugin-react'
+import reactHooks from 'eslint-plugin-react-hooks'
+import reactRefresh from 'eslint-plugin-react-refresh'
+
+export default [
+  eslint.configs.recommended,
+  react.configs.flat.recommended,
+  react.configs.flat['jsx-runtime'],
+  {
+    languageOptions: {
+      parserOptions: {
+        ecmaVersion: 'latest',
+        sourceType: 'module',
+      },
+    },
+    plugins: {
+      'react-hooks': reactHooks,
+      'react-refresh': reactRefresh,
+    },
+    settings: {
+      react: {
+        version: '18.2',
+      },
+    },
+    rules: {
+      ...reactHooks.configs.recommended.rules,
+      'react-refresh/only-export-components': [
+        'warn',
+        { allowConstantExport: true },
+      ],
+      'react/prop-types': 'off',
+      'react/no-unknown-property': ['off'],
+    },
+  },
+]