feat: support `screen` export

[DylanPiercey]

Description

Features:

• Exposes top level screen api that works for both client and server.
• Exposes component level cleanup method.
• debug api now in line with @testing-library/dom.
• cleanup afterEach now automatically enabled (can use dont-cleanup-after-each import to disable).
• now exposes esm and commonjs modules.

Breaking Changes:

• drop support for cleanup-after-each import, now this is the default
• drop node 12 support

Misc:

• Updates to codebase to use our modern tooling setup.

Checklist:

• [x] I have updated/added documentation affected by my changes.
• [x] I have added tests to cover my changes.

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (main@07c6338). Click here to learn what that means. The diff coverage is n/a.

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  Files           ?        3           
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  Hits            ?      136           
  Misses          ?        6           
  Partials        ?        0           

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