update eslint

Author: wmuldergov

src/frontend/.eslintrc.js

@@ -0,0 +1,44 @@
+import js from '@eslint/js';
+import globals from 'globals';
+import reactPlugin from 'eslint-plugin-react';
+import prettierConfig from 'eslint-config-prettier';
+import prettierPlugin from 'eslint-plugin-prettier';
+
+export default [
+  js.configs.recommended,
+  {
+    files: ['**/*.{js,jsx}'],
+    plugins: {
+      react: reactPlugin,
+      prettier: prettierPlugin,
+    },
+    languageOptions: {
+      ecmaVersion: 'latest',
+      sourceType: 'module',
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+        ...globals.es2021,
+      },
+      parserOptions: {
+        ecmaFeatures: { jsx: true },
+      },
+    },
+    settings: {
+      react: { version: 'detect' },
+    },
+    rules: {
+      ...reactPlugin.configs.recommended.rules,
+      ...prettierConfig.rules,
+      'prettier/prettier': 'error',
+      'react/prop-types': 'off',
+      'camelcase': 'off',
+      'no-unused-vars': ['warn', { args: 'none', varsIgnorePattern: '^_' }],
+    },
+  },
+  {
+    // Override for ESLint config files themselves
+    files: ['eslint.config.js'],
+    languageOptions: { sourceType: 'script' },
+  },
+];