Add get stores

[nathsouzadev]

This pull request primarily introduces a new feature that allows retrieving all stores associated with a specific user ID. This feature has been implemented across various layers of the application, including the repository, service, and controller levels. The changes also include the corresponding unit tests and end-to-end tests to ensure the feature's correctness.

Here are the most important changes:

Repository Layer:

• src/store/repository/prisma/prismaStore.repository.spec.ts: Added a new test case for the getAllUserStores method and mocked the findMany method of the store object.
• src/store/repository/prisma/prismaStore.repository.ts: Implemented the getAllUserStores method in the PrismaStoreRepository class.
• src/store/repository/store.repository.ts: Added the getAllUserStores method to the StoreRepository abstract class.

Service Layer:

• src/store/service/store.service.spec.ts: Added new test cases for the getAllUserStores method and mocked the same method in the StoreRepository instance. Also, corrected the argument order in the get method call.
• src/store/service/store.service.ts: Implemented the getAllUserStores method in the StoreService class. This method fetches all the stores associated with a user and throws a NotFoundException if no stores are found.
• src/user/service/user.service.spec.ts: Added a new test case for the getAllUserStores method and mocked the same method in the StoreService instance.
• src/user/service/user.service.ts: Implemented the getAllUserStores method in the UserService class.

Controller Layer:

• src/user/user.controller.ts: Added a new route handler for GET /:userId/stores that retrieves all stores associated with a user ID.

End-to-End Tests:

• test/store.e2e-spec.ts: Added new end-to-end tests for the GET /:userId/stores route. The tests cover the scenarios where the user has stores and where the user does not have any stores.