type: "basic-card";
url: string -- URL that opens when clicking the card
icon?: string | ImageObjectProps -- Card icon properties.
title?: Title | string -- Card title
text?: string -- Card description (with YFM support)
additionalInfo?: string -- Gray text (with YFM support)
links?: Link[] -- An array with link objects (see Content blocks)
buttons?: Button[] -- An array with button objects (see Content blocks)
border: 'shadow' | 'line' | 'none' -- Card border properties (defaults to 'shadow').
hoverBackgroundColor?: string - Card hover background color (deprecated, will be removed in future versions)