BREAKING: Split Valibot Schema to Its Own Package

[bachmacintosh]

Description

This PR splits all valibot related schema definitions to a new wanikani-api-valibot package. The test suite has also been updated, with reusable fixtures for when we code the remaining schema library packages.

Nature of Pull Request

This Pull Request:

• Adds/Updates Type(s)/Schemas
• Adds/Updates Helper Functions/Type Guards
• Updates Documentation
• Updates Project and/or Community Health files (e.g. README, GitHub Actions, etc.)

Its changes constitutes a:

• Non-code change (i.e. no version bump)
• Bug Fix or Other Small Changes (i.e. patch version bump)
• Forward-compatible Enhancement (i.e. minor version bump)
• ⚠️ BREAKING CHANGE regarding TypeScript, Package, and/or WaniKani API version(s) (i.e. MAJOR version bump)

Contribution Terms

I understand that by submitting this Pull Request:

• I agree to the terms outlined in the Contribution Guidelines and Code of Conduct
• My code will be licensed for use in this repository per its LICENSE, and that I have the right to license this code -- per GitHub's Terms of Service

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Files with missing lines	Coverage Δ
packages/requests/src/v20170710/parameters.ts	100.00% <100.00%> (ø)
packages/types/src/v20170710/base.ts	100.00% <ø> (ø)
...s/types/src/v20170710/spaced-repetition-systems.ts	100.00% <ø> (ø)
packages/types/src/v20170710/user.ts	100.00% <ø> (ø)
packages/valibot/src/v20170710/assignments.ts	100.00% <100.00%> (ø)
packages/valibot/src/v20170710/base.ts	100.00% <100.00%> (ø)
...ckages/valibot/src/v20170710/level-progressions.ts	100.00% <100.00%> (ø)
packages/valibot/src/v20170710/resets.ts	100.00% <100.00%> (ø)
...ackages/valibot/src/v20170710/review-statistics.ts	100.00% <100.00%> (ø)
packages/valibot/src/v20170710/reviews.ts	100.00% <100.00%> (ø)
... and 6 more

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.