support custom endpoints

[hitchhooker]

could you add support for rococo-local/custom-chainspecs?
this seems to me main pain point in using papi/reactive-dot/dot-console right now, not being able to connect to local development environment chains with same methods as production.

EDIT: just option to write write custom websocket from frontend would probably do now.

// const jsonRpcProvider = WsProvider("wss://some-rpc-endpoint.io")

[tien]

You can technically run this app locally and add the customer provider, along with its descriptor, to config.ts.

But many have requested the ability to point this app to any RPC endpoint, which I'll have a look at implementing next 👌