How to Enable Hot Reload for the static Directory in Nuxt.js

The explanation was found at the following link.

https://develop365.gitlab.io/nuxtjs-2.8.X-doc/ja/api/configuration-watch/

export default {
  ...,
  generate: {
    fallback: true,
  },

  watch: ['static'],
}

By providing watch in the nuxt.config.js file as shown above, the target directory became a watch target as well.