feat: add constants/float32/fourth-pi

[gunjjoshi]

Description

What is the purpose of this pull request?

This pull request:

• adds constants/float32/fourth-pi, which is the single precision equivalent for constants/float64/fourth-pi

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves a part of [RFC]: add math/base/special/atanf #2035.

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

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@stdlib-js/reviewers

[gunjjoshi]

This PR is a pre-requisite for #2035.

[gunjjoshi]

Test Coverage report:

[kgryte]

LGTM. Thanks, @gunjjoshi!