[rewrite] Major changes to code - switched to postgres, added initial backend docker files

backend/app/services/user/delete_service.py

@@ -11,6 +11,7 @@ from app.mail.mail import send_mail
 
 from app.messages.mail_responses.user_email import USER_EMAIL_SUCCESSFULLY_DELETED_ACCOUNT
 
+
 def delete_user(user_id: str) -> Tuple[Union[dict, str], int]:
     """
     Deletes a user account.

backend/app/services/user/login_service.py

@@ -13,7 +13,6 @@ from app.models.user_model import User
 from app.messages.mail_responses.user_email import USER_EMAIL_SUCCESSFULLY_LOGGED_IN
 
 
-
 def login(username: str, password: str) -> Tuple[Union[dict, str], int]:
     """
     Authenticates a user with the provided username and password.