Enhancement :- Two-Factor Authentication (2FA)

[DubeyYash01]

Description:
This enhancement introduces an optional Two-Factor Authentication (2FA) mechanism to bolster the security of user accounts within the application. When enabled, users will be required to verify their identity through a second form of authentication, such as a one-time password (OTP) sent to their registered email address or phone number, after entering their username and password. This additional layer of security significantly reduces the risk of unauthorized access, even if a user's password is compromised. By implementing 2FA, we aim to protect sensitive alumni data and provide users with greater peace of mind regarding the security of their accounts.