for DisplayTable, columns and rows follow a highly-specific data structure as noted in the type definitions below. this is a bit of a departure from our Table component, where the actual cell data is largely arbitrary and the rendering is controlled by the consumer (via renderHeaderCell, renderBodyCell, etc).

i think (a) i wanted to try to match our current MarketingTable API as much as we could where reasonable; and (b) it seems like to me for a display table where so much of the styling is governed by the internals of the component itself, it makes sense for it to not to defer rendering to the consumer and instead opt for a specific data structure.

let me know if that makes sense and feels cohesive enough in our component library for having the two approaches, and/or if there are better ideas