Sorry to bring the bad news, but the Logseq homepage is not fully in line with what’s in the app at this moment.
A large rewrite of the app is underway that makes what’s on the homepage easier to build. But a “contact” card will not be a default data type; you’ll have to set it up yourself using properties.
With a lot of effort you could build something like this in the current app, but I recommend waiting for Logseq DB that will makes this a lot easier.
Sorry for the false advertising, I’m also not happy what was brewed up on the homepage. But luckily we’re getting close to making what is on the homepage a reality for all.