We have overridden a number of clippy warnings such as
"large enum variant".
Considering that we have a number of issues
with the stack size in CI, it is more prudent to follow clippy's advice
and box larger items so that the enum does not take larger space.
Do note that an instance of the enum always takes as much space as its
largest variant.
As Bob is dialing Alice, we now ensure that we are connected to Alice
at each step that needs communication.
If we are not connected, we proceed with dialing.
In an attempt to improve libp2p usage, we also add known address of
Alice first and only use peer_id to dial.
This ensures that we use the expected peer id.
