Login

Logic:

• Retrieve the username and password from the template.

• Hash the password using Argon2id with the module argon2 on default parameters

• Compare the hashed password and username (NOT case-sensitive) against entries in users.json.

• Set the session cookie upon successful authentication.

Frontend:

• The login.html template show a banner with the instruction to contact an already registered family member if no account. Will show errors messages if User does not exist or Wrong password.