fix: improve keyboard navigation when Table has expandable rows

[yihuiliao]

Closes

✅ 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:

Go to any example with expandable rows and test that when a child row is collapsed, pressing arrow left moves the focus to the parent row.

In the case where it is a top level row, make sure that when the row is collapsed that focus wraps around within the row.

🧢 Your Project:

[rspbot]

Build successful! 🎉

• View the storybook
• View the S2 storybook
• View the S2 docs
• View the React Aria docs

[rspbot]

## API Changes

@internationalized/date

/@internationalized/date:DateValue

-DateValue {
-  D: undefined
-}

---

@react-spectrum/toast

/@react-spectrum/toast:CloseFunction

-CloseFunction {
-  C: undefined
-}

---

@react-stately/data

/@react-stately/data:AsyncListLoadFunction

-AsyncListLoadFunction {
-  A: undefined
-}

/@react-stately/data:AsyncListLoadOptions

-AsyncListLoadOptions <C, T> {
-  cursor?: C
-  filterText?: string
-  items: Array<T>
-  loadingState?: LoadingState
-  selectedKeys: Selection
-  signal: AbortSignal
-  sortDescriptor?: SortDescriptor
-}

/@react-stately/data:AsyncListStateUpdate

-AsyncListStateUpdate <C, T> {
-  cursor?: C
-  filterText?: string
-  items: Iterable<T>
-  selectedKeys?: Iterable<Key>
-  sortDescriptor?: SortDescriptor
-}

---