Edit
Insert Icons and HTML
You can insert other things than components via the Insert panel: Icons and HTML elements.
Icons
They are available in the insert panel under the Icons tab. They are all from the icon collection of Lucide.
HTML Elements
Finally, you can also insert basic HTML tags. They are available in the third tab called HTML Elements. Learn more about how you insert an image using a basic HTML img tag and the Image property panel under Property Panels