sig#789 - Enhance technicalUserManagement creation page by type + serviceurl

[MaximilianHauer]

Description:

As a Frontend Developer, I need to update the technical user self-service creation UI to include:

• fields for technical user type
• fields for service endpoint so that operators can specify and view this information during user setup.
• clear separation of internal / external users
• logic adjustment to ensure that the simultaneous selection of internal users and external users is not possible

precondition

• sig#789 - API Expansion for Technical User Information portal-backend#976
• sig#789 - Enable internal technical User to get multiple roles assigned  portal-backend#977

Acceptance Criteria

Internal User Section

• The system should have a dedicated section for internal users.
• The internal user section should allow the selection of multiple internal users using a checkbox interface.
• The selection of an external user should automatically disable the selection of the internal user.

External User Section

• The system should have a dedicated section for external users.
• The selection of an internal user should automatically disable the selection of the external user.

Technical User Roles

• A technical user can have only one external role, which should be selected using a radio button interface.
• The UI should have appropriate controls for viewing technical user types.

Additional Description

• The system should include a description explaining that the selection of internal and external users for the same service is not possible.
• If an external user is required for a service, the description should advise the user to create the external user separately.

Documentation

• The Documentation in https://github.com/eclipse-tractusx/portal-assets/tree/main/docs/user/03.%20User%20Management/03.%20Technical%20User should be updated accordingly

[lavanya-bmw]

@MaximilianHauer once BE changes are available, I will proceed with this ticket