[Image] errorSource not working on Android due to undefined nativeEvent.error + zIndex:-1 causes visibility issues

The Image component in react-native-ui-lib has two related issues on Android:

1. errorSource does not load when image fails
   On Android, onError callback receives an event where event.nativeEvent.error is undefined. As a result, the component cannot detect a real error and fallback to errorSource. The Avatar (and similarly, Image) component in react-native-ui-lib has issues on Android:

2. Image may be hidden due to zIndex: -1
   When using certain props (e.g., useBackgroundContainer or internal styling), the image gets zIndex: -1, causing it to be visually hidden behind other elements.

Both issues severely impact reliability and accessibility of image loading on Android.

react-native : 0.77.1 react-native-ui-lib : 7.43.0