bug: bring back l1 messaging

[apoorvsadana]

L1 messages were removed here #1580, we need to add it back. The l1 messages crate is there, just need to spawn the worker in service.rs and add the settlement_layer option in clap args

[jancris100]

Will like to take care of this one!

[apoorvsadana]

Hey @jancris100 have already started working on this? I actually have a PR under the way which needs the same thing so I can add it if you haven't already started

[jancris100]

I haven't started working on the issue, I was waiting for a response

[apoorvsadana]

Oh ok, I will pick this one for now, sorry for the delay. But please feel free to pick any issue and also you can message me on telegram - @apoorvsadana