I want to reproduce the "Table with expandable rows" example from https://material.angular.io/components/table/examples. I've created a new Angular project, added Angular material and literally copied the example content into my project. And yet, the rows are not expanding as in the example. I'm trying different imports, different styles - nothing. What am I missing?
Here's my project on stackblitz: https://stackblitz.com/edit/github-fc2cyw-ftpmac
