Python 3.13 support + fix bot detection

[mobeigi]

Changes:

• Support Python 3.12
• Avoid Facebook's bot detection that resulted in (Login problem without 2FA #126) by simply changing the user-agent. This avoids the redirect to the additional 2FA flow. This works for now as quick win but in the future we may have to mimic client side login flow more precisely to bypass the 2FA flow.

Fixes #126