[JS] Arrow typescript package on NPM seems incomplete

[asfimport]

The 'packaging' section on the Arrow NPM page lists a standalone package targeting typescript.

But it seems "@apache-arrow/ts" is missing content. As an example, Arrow.dom.ts has imports that are missing after installation.

import streamAdapters from './io/adapters';
import { Builder } from './builder/index';
... etc ...

Installing the "apache-arrow" package seems to works fine.

Environment: Typescript, browser, npm
Reporter: Svenn-Ivar Svendsen

_{Note: This issue was originally created as ARROW-10743. Please see the migration documentation for further details.}

[asfimport]

Svenn-Ivar Svendsen:
This is not a problem with v 6.0.0. Most likely it was a transient error.