token selector in GUI

[dcatki]

so @highonhopium_josh when you're back, token/network selector in the gui is definitely #1 painpoint for me right now
actually worse than the other composition stuff
i would rather keep fiddling with bindings and copypasta, but be able to have the network/token selectable
than have nicely abstracted code/yaml but still have to hand roll every token/network combo
there's pleny of examples in the wild of how this could work
i'm sure @highonhopium_josh can figure something logical out
..even when i was talking to toby, it's hard for him just to show some uni kids what is going on
because he's picked some random shitcoins, and then people have to put actual money into them in order to see trades clear
the whole thing is awkward in so many ways
and a lot of the time we probably wouldn't need private customer strats for h20, we could just send them a url with their token configured into a standard pub strat
it knocks off, or mitigates quite a lot of related pain points