GSW Frontend: Graph Visualization

[AarC10]

Is your feature request related to a problem? Please describe.
There should be a graph visualization where you can plot GSW measurements live

Describe the solution you'd like
Read from a websocket, grab data and if a user requests the data to be displayed on a graph show it. Multiple measurements should be able to be shown on the graph. Include support for autoscaling and manual scaling.

[K3das]

Grafana embeds can do this from MQTT topics, which in my experience has worked well. Drawback is that I don't think Grafana Live can load historical data at all, but I'm not sure if that's a requirement.

I think integrating MQTT could be also useful for integrating with other tooling, not only Grafana.