Add support for round trigger areas

Today Trigger areas use trigger actions
There is no way to add a Trigger component and assign a round area

The new TriggerArea component supports both cube shape and sphere shape, but I can only use a cube shape via the Creator Hub

Start by locating the TriggerArea component and the Creator Hub controls that currently expose only the cube shape. Verify how trigger components are assigned areas, then add access to the sphere shape and confirm both cube and sphere areas can be configured in Creator Hub.

Written by the indexing model from the issue text.