fix(useDateFieldState): fix setValue to work when field is empty

[reidbarber]

Fixes #4791

✅ 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:

🧢 Your Project:

[rspbot]

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[snowystinger]

btw, you can still export the function ProgrammaticSetValueExampleRender, just include it in the exclude array in the meta default

[reidbarber]

@snowystinger Thanks! Didn't realize that. Just updated.

[rspbot]

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[rspbot]

## API Changes

@react-aria/aria-modal-polyfill

/@react-aria/aria-modal-polyfill:watchModals

 watchModals {
   selector: string
-  undefined: {
-    document?: Document
-}
+  undefined: any
   returnVal: undefined
 }

---

@react-aria/live-announcer

/@react-aria/live-announcer:announce

 announce {
   message: Message
   assertiveness: Assertiveness
-  timeout: number
+  timeout: any
   returnVal: undefined
 }

---

@react-aria/overlays

/@react-aria/overlays:ariaHideOutside

 ariaHideOutside {
   targets: Array<Element>
-  root: Element
+  root: any
   returnVal: undefined
 }

---