add plugin to recommended config

[cruzdanilo]

add plugin to recommended config, so it's not necessary to explicitly add the plugin when using this config.
this is the default for every major eslint plugin with recommended configs, ex:

• eslint-plugin-node
• eslint-plugin-react
• eslint-plugin-import
• eslint-plugin-jsx-a11y
• eslint-plugin-jest
• eslint-plugin-promise
• eslint-plugin-vue
• eslint-plugin-prettier
• and others.

[brettz9]

In case it provides some assurances, eslint itself also documents this being done for plugins (see the example code which includes plugins on each config): https://eslint.org/docs/developer-guide/working-with-plugins#configs-in-plugins

[lo1tuma]

Thank you.