Container Component - Unable to specify Policy for child components

[priyankpardiwala]

Steps to reproduce:

1. Create a new editable template (that uses the Email Page component)
2. Setup Root Container Policy that allows "Container" component (Email Core)
3. While in "Structure" mode, add a Container component to the template
4. Next, set up a Policy for the "Container" component. Allow Text, Image components in this policy.
5. Unlock the Container component.

Expected Behavior:
The unlocked container component shows the Image and Text component with a button to allow us to set up a policy for these components individually.

Actual Behavior:
The unlocked container component just shows a responsive grid component. Therefore we are unable to setup policies for the individual child components.