User Authentication

**User Story**

As a registered user, I want to be able to log in to the https://magento.softwaretestingboard.com/ website using my account credentials.

**Acceptance Criteria:**

- On the homepage of the website, there should be an option to choose "Sign In" or "Authentication."

- Users should be able to enter their email address and password for authentication.

- The system should verify that the entered credentials are correct and that an account with those details exists.

- After successful authentication, users should see a message indicating successful login and should have access to their personal dashboard.