improved a lot logging, using tracing from tokio.
Now there's a subscriber which tracks log messages and makes them
available inside the state, so that we can show them in the gui.
Made a jank logs side panel.
Made panels reorderable in a kinda weird but meh way
Committing current state, which is a simple full
screen plot with some basic features. It compiles
for both native and web. There's a basic generic
datasource impl. It currently plots random data for demo.
