fix: dayperiod segment no longer resets when hour deleted

[charlotte-whiting]

Closes #6793

✅ Pull Request Checklist:

• [x ] 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:

Run locally
Test it either in the storybook or docs (can test in timefield, datefield, datepicker)
Make sure the dayperiod is set to PM
Delete the hour
Day period should not change

🧢 Your Project:

[yihuiliao]

Thanks for the PR! It seems like you've run prettier or something similar over the file which has created a lot of noise and fails lint. Would you mind undoing that so it's easier to review the actual change?

[charlotte-whiting]

Sorry about that @yihuiliao ! I think I got that fixed now

[yihuiliao]

Sorry for the wait! The changes look good, I just added a test which I hope you don't mind. I'll get others to review but thanks for being patient!

[charlotte-whiting]

Thank you! This was my first contribution so thanks for adding the test, I'll keep it in mind for the future!