Fix "paused on debugger" overlay icon (#48736)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48736

Pull Request resolved: https://github.com/facebook/react-native/pull/48735

This icon was broken by D65457771, identified in [OSS testing for the 0.77 release](https://github.com/reactwg/react-native-releases/issues/724).

By explicitly setting the image for the `Disabled` state to the same as `Normal`, we get the same behaviour as the deprecated [`adjustsImageWhenDisabled = NO`](https://developer.apple.com/documentation/uikit/uibutton/adjustsimagewhendisabled?language=objc) without the need for `configurationUpdateHandler`.

Changelog: [iOS][Fixed] Restore "Paused in debugger" overlay icon

Reviewed By: cipolleschi

Differential Revision: D68274336

fbshipit-source-id: 3f4b84eb7cfb518ca953c721da9885df8f98b437