fix: Rename default export playwright

[regseb]

When importing the default export, it's recommended to use the same name as the exported variable (cf. import-x/no-rename-default).

This package exports a variable named plugin. With the following file:

import { defineConfig } from '@eslint/config'
import playwright from 'eslint-plugin-playwright'

export default defineConfig([
  {
    files: ['tests/**'],
    extends: [playwright.configs['flat/recommended']],
    rules: {
      // Customize Playwright rules
      // ...
    },
  },
])

ESLint and import-x/no-rename-default report this error:

Caution: index.js has a default export plugin. This imports plugin as playwright. Check if you meant to write import plugin from 'eslint-plugin-playwright' instead.

---

With this pull request, we will be able to use the name playwright.

[mskelton]

This is silly, it doesn't matter what the name inside of the code is since it's a default export

[regseb]

It's a shame. I've proposed similar changes on other projects, and they were merged.

• chore: rename default export n eslint-community/eslint-plugin-n#556
• chore: rename default export webExt mozilla/web-ext#3789
• chore: Name the default export 'regexp' ota-meshi/eslint-plugin-regexp#952
• chore: Name the default export 'arrayFunctions' freaktechnik/eslint-plugin-array-func#661