This is mostly a copy of ambiso/bevy_websocket_example:
https://github.com/ambiso/bevy_websocket_example/tree/main
It demonstrates how to hold and use a (Tungstenite) WebSocket in a Bevy
app. I've altered it slightly (and skipped impl'ing the send function)
to fit my own chatroom dummy target.
This is completely useless as a chatroom app, but it's not supposed to
be one. Now I can move on to building the actual Pong game!