chore: Adds package json exports for test-utils dom wrappers

[pan-kot]

Description

Make individual test-utils dom wrappers exported via package.json exports. These are necessary for extending test utils when building component libraries on top of Cloudscape.

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.60%. Comparing base (1834b88) to head (8cb81bc).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4750   +/-   ##
=======================================
  Coverage   97.60%   97.60%           
=======================================
  Files         951      951           
  Lines       30744    30744           
  Branches    11281    11280    -1     
=======================================
  Hits        30007    30007           
- Misses        690      730   +40     
+ Partials       47        7   -40     

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[jperals]

Can't the per-component test utils already be imported from the root? Like

import { Component } from "@cloudscape-design/components/test-utils/dom";

[pan-kot]

Ah, good point - I did not realise that we export them from the index file! I will cancel the PR and update my docs :)

[pan-kot]

Wait, no.

The wrappers are indeed exported - but the whole idea is to avoid importing from /dom/index - doing so will augment the ElementWrapper.

I reopened the PR :)