Add type exports for subpaths

[connor-baer]

Purpose

TypeScript isn't able to resolve the types for subpath exports (e.g. @sumup/circuit-ui/legacy).

Approach and changes

• Added conditional export conditions when using moduleResolution: nodeNext in consuming apps
• Added typesVersions when using moduleResolution: node in consuming apps

Definition of done

• Development completed
• Reviewers assigned
• Unit and integration tests
• Meets minimum browser support
• Meets accessibility requirements

[changeset-bot]

🦋 Changeset detected

Latest commit: 3092d65

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@sumup/circuit-ui	Patch

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Name	Status	Preview	Comments	Updated (UTC)
oss-circuit-ui	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 21, 2023 7:44pm

[codecov]

Codecov Report

Merging #2196 (3092d65) into next (b5b0df1) will not change coverage.
The diff coverage is n/a.

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  Coverage   96.56%   96.56%           
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  Files         259      259           
  Lines       20523    20523           
  Branches     1928     1928           
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  Hits        19818    19818           
  Misses        702      702           
  Partials        3        3