feat: Publish Veda UI to npm and workflow proposal

[dzole0311]

Related Ticket: closes #1369

Description of Changes

• Changed the registry in .npmrc from the private Verdaccio registry to the public NPM registry under the scope teamimpact
• Published the library under the teamimpact scope and updated the docs on how to set the necessary npm credentials
• Experimented with a new README-lib.md:
  • Added an experimental workflow to copy this file to the lib dist during the library build
  • This allows us to have a unique README.md for the library when its published on NPM, separate from the veda-ui submodule documentation
• I noticed the lib bundle size increased, largely due to the USWDS images and fonts being copied in the library build. There’s room for optimization, including removing unused assets or modules from the existing veda-ui (e.g. air-quality-and-covid-19--story-cover.png etc), and I made a tracking issue for that: Optimize veda-ui library bundle size #1392

Notes & Questions About Changes

Proposed workflow for developing, testing and publishing the NPM registry:

• Workflow proposal for veda-ui NPM publishing and development / testing with consuming apps (Next.JS) is documented here. The proposal aligns and extends our current veda-ui publishing workflow with the bi-weekly automated releases

Validation / Testing

1. Set the necessary npm auth credentials mentioned in the set up docs
2. dry-run publish a version to make sure everything you're correctly authenticated
3. Review the Google doc proposal and share feedback

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