Update React-Native Modal prop typings

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Select one of these and delete the others:

If changing an existing definition:
- [x] Provide a URL to documentation or source code which provides context for the suggested changes: https://github.com/facebook/react-native/blob/master/Libraries/Modal/Modal.js#L161


Additional info:
Just like the onShow optional prop, the Modal's onOrientationChange prop can capture a NativeSyntheticEvent at the time of the hardware change. This allows the developer to determine if the orientation change was to the landscape or portrait style and react accordingly.

types/react-native/index.d.ts

@@ -4363,7 +4363,7 @@ export interface ModalProperties {
      * The orientation provided is only 'portrait' or 'landscape'. This callback is also called on initial render, regardless of the current orientation.
      * @platform ios
      */
-    onOrientationChange?: () => void;
+    onOrientationChange?: (event?: NativeSyntheticEvent<any>) => void;
      /**
      * The `onDismiss` prop allows passing a function that will be called once the modal has been dismissed.
      * @platform ios