fix(calendar): prevent setFocusedDate from stealing focus

[AryanBagade]

Closes #9427

✅ 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:

1. Go to the Calendar docs Month & Year picker example
2. Tab to the Month dropdown
3. Type "JUL" - should cycle through January → June → July without losing focus
4. Tab to Year dropdown - should move directly (not to grid first)
5. Type "2025" - should update year without losing focus
6. Click on a calendar cell - focus SHOULD move to the grid (existing behavior preserved)

🧢 Your Project:

Personal contribution (Author : Aryan Bagade aryan.com)

[snowystinger]

Thanks for the PR! would you mind adding some tests for this so we don't have a regression later?

[snowystinger]

Thanks for the attempt, if you used AI, I think it mislead you. Your tests passed both before and after the change and didn't appear to have anything to do with the changes. I've removed them and added a test for the change.

[snowystinger]

Note to other reviewers, there is a usage in useRangeCalendarState's highlightDate, but I don't believe we need the setFocused(true) there as the calendar would already have focus in that case

[snowystinger]

Checked behaviour against Calendar/RangeCalendar month-and-year-pickers example as well