You can get a better answer with the Edison forum. We are now transferring your post to this team.
This is an interesting question, I did some research on LiFi and this doesn’t sound like something the Edison can do at this time. LiFi uses optical signal while WiFi uses electromagnetic signals. I think LiFi is really just in a starting phase so not sure if there are any actual products on the market yet.
You can see more on LiFi at Li-Fi Consortium