React Native Promise Rejection

* Error handling within the `fetch` chain is incomplete; implement status checks for non-network promise rejections. * Refactor the data fetching function using modern `async/await` syntax for improved promise management clarity. * Explicitly display rejection errors in the UI state, enhancing user experience beyond simple console logging. * The monolithic `App.js` structure demands component decoupling to uphold crucial separation of concerns for scalability. * Ensure state updates handle errors gracefully, preventing unhandled promise rejection warnings in the React Native environment.