Add Prettier and ESLint configs; add lint script

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.eslintrc.cjs

@@ -0,0 +1,32 @@
+module.exports = {
+  root: true,
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 2020,
+    sourceType: 'module',
+    ecmaFeatures: {
+      jsx: true,
+    },
+  },
+  env: {
+    browser: true,
+    es2021: true,
+    node: true,
+  },
+  extends: [
+    'eslint:recommended',
+    'plugin:react/recommended',
+    'plugin:@typescript-eslint/recommended',
+    'prettier',
+  ],
+  plugins: ['react', '@typescript-eslint', 'react-hooks'],
+  settings: {
+    react: {
+      version: 'detect',
+    },
+  },
+  rules: {
+    'react/react-in-jsx-scope': 'off',
+    'react/prop-types': 'off',
+  },
+}