Solution for beehiiv Coding Challenge

[philmillshub]

These changes implement the API functions for creating and updating users in the database, using a PostgreSQL db to store entries, and it updates the front-end code to use these hooks.

• Created a subscriber model to store subscriber information, with constraints on name (must exist), email (must exist, must be an email, must be unique regardless of case sensitivity), and status (must be active or inactive)
• Updated create hook to check for valid input info and create the subscriber if so, and return a forbidden status if the save fails
• Updated update hook to look up a subscriber and change its status, and return a not_found status if the lookup fails
• Updated the front-end to take the results back from API calls to display results in the interface properly (with error handling)
• Extended the test suite to cover as many cases as I could think of for this challenge