XB AI: User selection should be taken into account while building page

Overview

While creating a page using AI in XB, Component selection should be taken into account even if the user doesn't explicitly ask for that.
Scenario 1:
User has selected “Card Container” component on the preview. There’s an empty content slot. User asks “Can you add some cards to show case the product highlights?”. I’d expect these cards to be added to the slot.

Scenario 2:
User has selected hero component on the preview. Hero component has an empty slot for buttons. User asks “Can you add some cards to show case the product highlights?”. I’d expect these cards to be added in a new container below the hero.

Proposed resolution

User interface changes