build: properly extend ESLint base configuration

Author: jrolfs

.eslintrc.js

@@ -1,13 +1,14 @@
-const {overrides, ...config} = require('@hover/javascript/eslint')
-
 module.exports = {
-  ...config,
+  extends: require.resolve('@hover/javascript/eslint'),
   ignorePatterns: ['dom-testing-library.js', 'rollup.input.js'],
   parserOptions: {
     tsconfigRootDir: __dirname,
     project: ['tsconfig.eslint.json', 'tsconfig.json'],
   },
   rules: {
+    '@typescript-eslint/no-unsafe-assignment': 'off',
+    '@typescript-eslint/no-unsafe-member-access': 'off',
+    '@typescript-eslint/no-unsafe-return': 'off',
     'no-restricted-syntax': 'off',
     'no-underscore-dangle': ['error', {allow: ['__regex', '__flags']}],
   },