Request: package.json sorter plugin

[gunta]

Add support to nice package.json sorting using either one of those:

• https://github.com/uetchy/prettier-plugin-fixpack
• https://github.com/matzkoh/prettier-plugin-packagejson

[aminya]

The more recent one is https://github.com/keithamus/sort-package-json

However, I prefer to put the keywords in the end

[tomdavidson]

I like prettier-plugin-packagesjon and currently use it with dprint's exec plugin in:

  "exec": {
    "associations": [
      "**/package.json",
    ],
    "prettier-package-json": "node_modules/.bin/prettier-package-json {{file_path}}",
    "prettier-package-json.associations":  "**/package.json",
    "prettier-package-json.stdin": false,
}

Where is the line drawn between making a wasm plugin for dprint vs a dprint-plugin-prettier plug in?