export package.json for webpack plugins

[Gerrit-K]

Sometimes it is useful to be able to import / read the package.json of a distributed package, e.g. when using webpack plugins such as generate-package-json-webpack-plugin. It seems to be common practice to do so (as observed subjectively, of course, for many other packages).

Thus, I would propose to change:

https://github.com/panva/node-openid-client/blob/a166748a71ae9ced681adf3afb5f3d2a469bf137/package.json#L32-L35

to:

  "exports": {
    ".": {
      "import": "./lib/index.mjs",
      "require": "./lib/index.js"
    },
    "./package.json": "./package.json"
  },

(or something similar ... I actually have no idea how that stuff works and neither do I know all the consequences)