Index: frontend/node_modules/eslint-plugin-react/index.js
===================================================================
--- frontend/node_modules/eslint-plugin-react/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/eslint-plugin-react/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,125 @@
+'use strict';
+
+const fromEntries = require('object.fromentries');
+const entries = require('object.entries');
+
+const allRules = require('./lib/rules');
+
+function filterRules(rules, predicate) {
+  return fromEntries(entries(rules).filter((entry) => predicate(entry[1])));
+}
+
+/**
+ * @param {object} rules - rules object mapping rule name to rule module
+ * @returns {Record<string, SEVERITY_ERROR | 'error'>}
+ */
+function configureAsError(rules) {
+  return fromEntries(Object.keys(rules).map((key) => [`react/${key}`, 2]));
+}
+
+/** @type {Partial<typeof allRules>} */
+const activeRules = filterRules(allRules, (rule) => !rule.meta.deprecated);
+/** @type {Record<keyof typeof activeRules, 2 | 'error'>} */
+const activeRulesConfig = configureAsError(activeRules);
+
+/** @type {Partial<typeof allRules>} */
+const deprecatedRules = filterRules(allRules, (rule) => rule.meta.deprecated);
+
+/** @type {['react']} */
+// for legacy config system
+const plugins = [
+  'react',
+];
+
+// TODO: with TS 4.5+, inline this
+const SEVERITY_ERROR = /** @type {2} */ (2);
+const SEVERITY_OFF = /** @type {0} */ (0);
+
+const configs = {
+  recommended: {
+    plugins,
+    parserOptions: {
+      ecmaFeatures: {
+        jsx: true,
+      },
+    },
+    rules: {
+      'react/display-name': SEVERITY_ERROR,
+      'react/jsx-key': SEVERITY_ERROR,
+      'react/jsx-no-comment-textnodes': SEVERITY_ERROR,
+      'react/jsx-no-duplicate-props': SEVERITY_ERROR,
+      'react/jsx-no-target-blank': SEVERITY_ERROR,
+      'react/jsx-no-undef': SEVERITY_ERROR,
+      'react/jsx-uses-react': SEVERITY_ERROR,
+      'react/jsx-uses-vars': SEVERITY_ERROR,
+      'react/no-children-prop': SEVERITY_ERROR,
+      'react/no-danger-with-children': SEVERITY_ERROR,
+      'react/no-deprecated': SEVERITY_ERROR,
+      'react/no-direct-mutation-state': SEVERITY_ERROR,
+      'react/no-find-dom-node': SEVERITY_ERROR,
+      'react/no-is-mounted': SEVERITY_ERROR,
+      'react/no-render-return-value': SEVERITY_ERROR,
+      'react/no-string-refs': SEVERITY_ERROR,
+      'react/no-unescaped-entities': SEVERITY_ERROR,
+      'react/no-unknown-property': SEVERITY_ERROR,
+      'react/no-unsafe': SEVERITY_OFF,
+      'react/prop-types': SEVERITY_ERROR,
+      'react/react-in-jsx-scope': SEVERITY_ERROR,
+      'react/require-render-return': SEVERITY_ERROR,
+    },
+  },
+  all: {
+    plugins,
+    parserOptions: {
+      ecmaFeatures: {
+        jsx: true,
+      },
+    },
+    rules: activeRulesConfig,
+  },
+  'jsx-runtime': {
+    plugins,
+    parserOptions: {
+      ecmaFeatures: {
+        jsx: true,
+      },
+      jsxPragma: null, // for @typescript/eslint-parser
+    },
+    rules: {
+      'react/react-in-jsx-scope': SEVERITY_OFF,
+      'react/jsx-uses-react': SEVERITY_OFF,
+    },
+  },
+  flat: /** @type {Record<string, ReactFlatConfig>} */ ({
+    __proto__: null,
+  }),
+};
+
+/** @typedef {{ plugins: { react: typeof plugin }, rules: import('eslint').Linter.RulesRecord, languageOptions: { parserOptions: import('eslint').Linter.ParserOptions } }} ReactFlatConfig */
+
+/** @type {{ deprecatedRules: typeof deprecatedRules, rules: typeof allRules, configs: typeof configs & { flat: Record<string, ReactFlatConfig> }}} */
+const plugin = {
+  deprecatedRules,
+  rules: allRules,
+  configs,
+};
+
+Object.assign(configs.flat, {
+  recommended: {
+    plugins: { react: plugin },
+    rules: configs.recommended.rules,
+    languageOptions: { parserOptions: configs.recommended.parserOptions },
+  },
+  all: {
+    plugins: { react: plugin },
+    rules: configs.all.rules,
+    languageOptions: { parserOptions: configs.all.parserOptions },
+  },
+  'jsx-runtime': {
+    plugins: { react: plugin },
+    rules: configs['jsx-runtime'].rules,
+    languageOptions: { parserOptions: configs['jsx-runtime'].parserOptions },
+  },
+});
+
+module.exports = plugin;