[FE - API] Create Proxy server on FE to save cookies/token/authentication on frontend.

[mandaputtra]

Since the FE using fullstack framework Remix.run, it's SSR and capable of some backend scope. It will be easier to understand if we just create a proxy in remix to communicate with the backend API. Why not create the backend on remix? Great question. I just want to separate things out here (I really love doing it lol), maybe it requires more work. I might change my mind, so the code should be portable as possible.