Baisc fetch example

Demonstrating simple data fetching with React Query's useQuery hook.

1. useQuery Hook: Simplifies API requests and server state management.
2. Query Key: Unique array identifier for the query.
3. Query Function: Returns a promise, typically with an API call.
4. Caching and Refetching: Automatic caching and refetching for up-to-date data.
5. Loading and Error States: Manage UI states with data, error, and isLoading.

Full code for this example: Click here

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