E2E tests Create top-level group via UI method doesn't set `name` attribute

Summary

Introduced in !74366 (merged)

The UI method only sets id attribute after creation. If the group is initialized without name attribute value, calling group.name will result in

QA::Resource::Base::NoValueError:
       No value was computed for name of QA::Resource::Sandbox.

Possible fixes

In Resource::SandBox class, add

@id = Page::Group::Show.perform(&:group_id)
@name = Page::Group::Show.perform(&:group_name) #Also need to add this element and corresponding method

Or we could add 👇 during group initialization. But this may have bigger impact on existing code

@name ||= path