Add Support for Multiple Backend Services (Appwrite, PocketBase, Supabase)

[HelloSniperMonkey]

🚀 The feature

We should consider integrating support for multiple backend services, including Appwrite, PocketBase, and Supabase, into the project. This would allow for more flexibility and make it easier to switch between services if needed in the future.

Tasks

• Add configuration options to toggle between Appwrite, PocketBase, and Supabase.
• Ensure authentication, database operations, and API interactions work consistently across services.
• Write tests to validate functionality across different backends.

Motivation, pitch

@mdmohsin7 please assign me this issue as i have completed working on the previous issue

[mdmohsin7]

Assigned @HelloSniperMonkey

[Himanshipari]

@mdmohsin7 "Hi! I see this issue is assigned to someone. I'D LOVE To help with this as well. Is there any specific subtask or part of the issue that I can assist with?"