Adds documentation for the `usePayloadAPI` hook to the React Hooks
documentation.
The new section provides details on how the hook works, its parameters,
return values, and example usage.
**Changes:**
- Added `usePayloadAPI` documentation to the React Hooks page.
- Explained its purpose, arguments, and return values.
- Included an example demonstrating how to fetch data and update request
parameters dynamically.
Fixes: #10969
d56de79671