BuiltInParameters not applying in iPad - iOS

## Issue

My React-Native has the library for external auth provided & I have my configuration set with the additional parameters:

```JS
import {
authorize,
} from 'react-native-app-auth';

const config = {
...
additionalParameters: {
...
display : 'page',
...
}
...
};
```

I have the configuration set to have the display shown for the page as seen in the [BuiltInParameters](https://github.com/FormidableLabs/react-native-app-auth/blob/main/index.d.ts#L58) options:

Screenshot:

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## Environment
* **Platform**: `iOS`
* **`react-native` Version**: `0.69.1`
* **`react-native-app-auth` Version**: `^7.1.0`
* **Are you using Expo?** `No`