Change hash_password_with_salt_and_pepper function to return a tuple …

…of hashed password and salt

routes/authentication.py

@@ -14,7 +14,7 @@
 ph = PasswordHasher()
 
 
-def hash_password_with_salt_and_pepper(password: str) -> str:
+def hash_password_with_salt_and_pepper(password: str) -> tuple[str, bytes]:
     salt = os.urandom(16)
     pepper = os.getenv("PEPPER").encode("utf-8")
     seasoned_password = password.encode("utf-8") + salt + pepper