Migrate vue-app test project to flat ESLint

Author: akurtakov

org.eclipse.wildwebdeveloper.tests/testProjects/vue-app/eslint.config.mjs

@@ -0,0 +1,15 @@
+import vue from 'eslint-plugin-vue';
+import babelParser from '@babel/eslint-parser';
+import js from '@eslint/js';
+
+export default [
+	js.configs.recommended,
+	...vue.configs['flat/vue3-essential'],
+	{
+		languageOptions: {
+			parserOptions: {
+				parser: babelParser,
+			},
+		},
+	},
+];

org.eclipse.wildwebdeveloper.tests/testProjects/vue-app/package.json

@@ -18,22 +18,9 @@
     "@vue/cli-plugin-eslint": "~5.0.0",
     "@vue/cli-service": "~5.0.0",
     "eslint": "^9.17.0",
+	"@eslint/js": "^9.17.0",
     "eslint-plugin-vue": "^10.0.0"
   },
-  "eslintConfig": {
-    "root": true,
-    "env": {
-      "node": true
-    },
-    "extends": [
-      "plugin:vue/vue3-essential",
-      "eslint:recommended"
-    ],
-    "parserOptions": {
-      "parser": "@babel/eslint-parser"
-    },
-    "rules": {}
-  },
   "browserslist": [
     "> 1%",
     "last 2 versions",