User Story 1: User registration with username and password.

[Pur3-MAlice]

As a new user, I want to be able to register for an account with my username and password so that I can access the app.

[Pur3-MAlice]

User Story 1 Tasks:

• [x] Task 1.1: Create the user registration form.
• [x] Task 1.2: Implement the user registration logic.