[Refactor] Frontend API Calls should be kept under the Service folder for Faq

[shivamgaur99]

Refactoring the Faq as per the proposed style.

Additional context Currently, all the API calls is taking place atleast twice, one for normal flow and one for admin. We should keep all the api calls in a single folder service and then reuse the same code for all the places.

Have you read the Code of Conduct? Write your answer here. YES

[shivamgaur99]

@Kajol-Kumari Could you please assign this to me?