Pixiportal

As a user, I want to authenticate to PixiPortal, so that I can securely access the platform.

Acceptance Criteria:

- Successful login:
Given a user has an active account,
And enters a valid email and correct password,
When they click "Log in",
Then they are authenticated and redirected to their personal space.

-Missing fields:
Given a user submits the form without filling in the email or password,
Then login is refused, and a message indicates the missing fields.

-Invalid credentials:
Given a user enters an incorrect email/password combination, or an email that doesn't correspond to any account,
Then the login fails, and a single generic message is shown ("invalid credentials"), without indicating whether the email exists in the system.

-Deactivated account:
Given a deactivated user attempts to log in,
Then access is refused and a message informs them their account is inactive.

-Logout:
Given an authenticated user,
When they click "Log out",
Then their session ends and they are redirected to the login page.

"Note: US01, US02, US03 & US08 are pushed by the same ID #3752"