UI needs a configuration wizard to be used on first run #15
Description
As we've agreed on #2, we need to add a configuration wizard which guides the user on his first run of the UI.
Since we're focusing on the docker approach first (as described in https://docs.google.com/document/d/1hzxH1Fktq-tk9bwBO1GoxJyXKpASsg51IYStK9xXk0c/edit?usp=sharing), this wizard should get all the inputs which are necessary to run JDC and tProxy docker images.
The flow should be similar to the https://github.com/stratum-mining/sv2-wizard, except that the assumption is that the user is running this UI inside docker already (so there's no need to handle JDC and tProxy binaries).
In case the user wants to use JD, we need to connect an existing Bitcoin Node to this environment, and we can initially do it in the same way we do in the sv2-wizard.