Webhooks and API Pulls UI improvement

For webhooks and API pulls, if a user has not created any of them then this interface is seen, which does not give clarity to users about the entities.

We can improve the interface for both these entities by adding a plus sign card button as available for data imports and can write a little description about them, and we can even list these entities as seen in the below image.

Similar issue was reported. You can track the below issue instead. Proper message when no API Pulls or Webhook is there