cmd, node, p2p/simulations: fix node account manager leak (#19004)

* node: close AccountsManager in new Close method

* p2p/simulations, p2p/simulations/adapters: handle node close on shutdown

* node: move node ephemeralKeystore cleanup to stop method

* node: call Stop in Node.Close method

* cmd/geth: close node.Node created with makeFullNode in cli commands

* node: close Node instances in tests

* cmd/geth, node: minor code style fixes

* cmd, console, miner, mobile: proper node Close() termination

p2p/simulations/adapters/inproc.go

@@ -172,6 +172,12 @@ type SimNode struct {
 	registerOnce sync.Once
 }
 
+// Close closes the underlaying node.Node to release
+// acquired resources.
+func (sn *SimNode) Close() error {
+	return sn.node.Close()
+}
+
 // Addr returns the node's discovery address
 func (sn *SimNode) Addr() []byte {
 	return []byte(sn.Node().String())