[Feature request] Switch to tungstenite

[werdahias]

From the websocket readme:

Note: Maintainership of this project is slugglish. You may want to use tungstenite or tokio-tungstenite instead.
[...]

Note that this particular library is based on obsolete dependencies (Hyper 0.10, Tokio 0.1), so is a poor choice for new projects. You are adviced to use other Websocket libraries.

I think it might be good to switch to a maintained, more up-to-date websocket implementation such as tungstenite. This would also help along packaging this program for debian.