Index: frontend/node_modules/eslint-config-react-app/base.js
===================================================================
--- frontend/node_modules/eslint-config-react-app/base.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/eslint-config-react-app/base.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,50 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+// Fix eslint shareable config (https://github.com/eslint/eslint/issues/3458)
+require('@rushstack/eslint-patch/modern-module-resolution');
+
+// This file contains the minimum ESLint configuration required for Create
+// React App support, and is used as the `baseConfig` for `eslint-loader`
+// to ensure that user-provided configs don't need this boilerplate.
+
+module.exports = {
+  root: true,
+
+  parser: '@babel/eslint-parser',
+
+  plugins: ['react'],
+
+  env: {
+    browser: true,
+    commonjs: true,
+    es6: true,
+    jest: true,
+    node: true,
+  },
+
+  parserOptions: {
+    sourceType: 'module',
+    requireConfigFile: false,
+    babelOptions: {
+      presets: [require.resolve('babel-preset-react-app/prod')],
+    },
+  },
+
+  settings: {
+    react: {
+      version: 'detect',
+    },
+  },
+
+  rules: {
+    'react/jsx-uses-vars': 'warn',
+    'react/jsx-uses-react': 'warn',
+  },
+};