chore: Refactor codemods

[reidbarber]

This will make it easier to add and maintain S1 to S2 codemods in the future.

Codemods are now split up by component in src/codemods/components/.

So to add a Button codemod:

1. Create src/codemods/components/Button/transform.ts if it doesn't exist
2. Implement the component transform logic in a default exported function and import any shared transform functions needed (i.e. removeProp)
3. Add tests at __tests__/button.test.ts

✅ Pull Request Checklist:

• Included link to corresponding React Spectrum GitHub Issue.
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• Filled out test instructions.
• Updated documentation (if it already exists for this component).
• Looked at the Accessibility Practices for this feature - Aria Practices

📝 Test Instructions:

Unit tests should validate that all the transforms are still correctly applied, but it would be good to build and test that it still works end-to-end:

1. cd packages/dev/codemods && yarn build

2. Change directories to an example app

3. node ../../packages/dev/codemods/dist/index.js s1-to-s2

🧢 Your Project:

[rspbot]

Build successful! 🎉

• View the storybook
• View the storybook-19
• View the storybook-17
• View the storybook-16
• View the S2 storybook
• View the documentation