I am looking at the open source LWC recipes and whenever I try to add a template to app.html which references ui-card, I am hitting a compile error.
I saw that this issue has come up before from here - https://github.com/trailheadapps/lwc-recipes-oss/issues/53 - but I don't understand what the resolution actually is? It seems I have to explicitly add ui-card as a component to my app directory but I don't know what the .js, .html or .css would be? Am I supposed to get it from here? https://github.com/Templarian/lwc-ui/tree/master/src/modules/ui
I find it very strange that ui-card is NOT in the repo - https://github.com/trailheadapps/lwc-recipes-oss/tree/master/src/modules/ui. Is there a reason why it's not in there?