Interrapt G33

When creating a new user on the registration page, the name field allows special characters such as @#$%^&*(), which should not be allowed.

Environment:
"https://qainterrapt.brainster.xyz/login

PC: Windows 10

Browsers: Google chrome Version 131.0.6778.109 (64-bit)

Steps to reproduce:

1. Navigate to the user registration page
2. In the "Name" field, input a name containing special character (e.g. Vlatko@).
3. Click on "Create" button.

Expected Result:
An error message "Special characters are not allowed" should be displayed.

Actual Result:
The user can submit the registration form with special characters in the name field, and the form is accepted without any validation error.