chore: [IOPAE-1067] Add skeleton in `ServiceDetailsScreen`

[adelloste]

This pr depends on https://github.com/pagopa/io-app/pull/5677

Short description

This PR adds the skeleton for the loading state in ServiceDetailsScreen.

Details

| service details | | - | |

List of changes proposed in this pull request

• updated ServiceDetailsScreen in order to display the skeleton

How to test

Using io-dev-api-server, navigate to the services tab and tap a service. Check that the screen is displayed correctly.

[pagopa-github-bot]

Affected stories

• ⚙️ IOPAE-1067: [APP] Aggiungere screen di caricamento subtask of
  • 🌟 IOPAE-1038: [MVP0] Come cittadino voglio vedere pagina di un servizio nazionale/locale con il nuovo DS

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[dpulls[bot]]

:tada: All dependencies have been resolved !