Pub sub blocks (#6139)

* fun start

* playin

* linting

* cleanup kk 1

* cleanup kk 2

* package

* oops

* grumbles

* lint

* lint 2

* all-possible-cases

* conflict resolution

* conflict resolution

* ready

* lint

* remove package-lock

* Restart subscription on transport close.

* Bring back the formatter.

* Fix formatter.

hw/src/lib.rs

@@ -155,7 +155,6 @@ impl HardwareWalletManager {
 		self.ledger.lock().set_key_path(key_path);
 	}
 
-
 	/// List connected wallets. This only returns wallets that are ready to be used.
 	pub fn list_wallets(&self) -> Vec<WalletInfo> {
 		self.ledger.lock().list_devices()