add exports to package.json

[diegoalzate]

Overview

This pr allows users to import types and also re-structures how we import specific packages.

example of how to import

still works if you to this

import {api} from "hopr-sdk"

recommended:

import { apiFunction } from "hopr-sdk/api"

but there's a gotcha

REQUIRES "moduleResolution": "node16" or "nodenext" on tsconfig client side. this is ok because we require node16 to install the package anyway. But since it is config, a client might have something different.

Why does this gotcha exist?

it seems to be a on going conversation on different issues and very confusing progress, however this module resolution will work on node 12 and 14.

source: microsoft/TypeScript#50794

[ItsLuized]

👍🏻
One question: Should we document how these configs should look like (e.g. in a README file) ?

[mjadach-iv]

👍🏻 One question: Should we document how these configs should look like (e.g. in a README file) ?

Yep, cc: @camilovegag