Implement Two-Factor Authentication

[StefanPenchev05]

As a security measure, we need to implement two-factor authentication (2FA) for our users. This will provide an additional layer of security by requiring users to provide two forms of identification before they can access their account.

Acceptance Criteria:

1. When a user signs up, they should have the option to enable 2FA.
2. If 2FA is enabled, the user should be prompted to enter a verification code sent to their email or phone number when they log in.
3. The user should not be able to access their account until they provide the correct verification code.
4. The user should have the option to disable 2FA from their account settings.

Tasks:

• [x] Update the User model to include a field for 2FA status.
• [ ] Update the signup process to include an option for enabling 2FA.
• [x] Update the login process to check for 2FA status and prompt for a verification code if 2FA is enabled.
• [ ] Implement a service for sending verification codes to the user's email or phone number.
• [ ] Update the account settings page to include an option for disabling 2FA.

[StefanPenchev05]

In addition to give some example of settings, since I will create Settings.js Model

1. Theme: A string that indicates the user's preferred theme (light or dark). 2. Notifications: An object with boolean fields for different types of notifications (email and push). 3. ShowOnlineStatus: A boolean that indicates whether the user's online status should be visible to others. 4. HideProfile: A boolean that indicates whether the user's profile should be hidden. 5. TwoFactorAuth: An object with fields related to two-factor authentication. 6. Privacy: An object with fields related to privacy settings (profile visibility, last seen visibility, and read receipts).