[FR]: Adding error management example with best practices

[EnricoMazzu]

Is there an existing issue for this?

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Describe the problem

Now in android app is a well structured app and an interesting starting point to study how create an android app with a good architecture.

However, reviewing the code, i've noticed the absence of a good "error handling" example, in particular where the error pass via all the app layers and through the various mapping and anti-corruption layers.

I can work on this topic and try to submit a pull request if for you sound acceptable.

Describe the solution

Add error management at least in one feature / use case

Additional context

No response

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