`peer_disconnected` documentation does not mirror that of `peer_connected`

[jcoppock]

Your Godot version:
v4.5.beta1.mono.official [46c495ca2]

Issue description:
The documentation for peer_connected and peer_disconnected is inconsistent. They both receive signals when the server (peer ID of 1) connects or disconnects, but it's only mentioned on peer_connected. Assuming a disconnect signal would be received because a connect signal is received may be efficient, but I did not make that assumption at first, hence this issue.

Here's a simple code example that just shows the signal connections. (This example does not show the other aspects of setting up networking)

func _ready() -> void:
	multiplayer.peer_connected.connect(_on_peer_connected)
	multiplayer.peer_disconnected.connect(_on_peer_disconnected)

func _on_peer_connected(id: int) -> void:
	print("Peer connected: ", id)

func _on_peer_disconnected(id: int) -> void:
	print("Peer disconnected: ", id)

Here is a screenshot of my client logs after starting the server, connecting a client, and stopping the server.

URL to the documentation page (if already existing):
MultiplayerAPI#peer_disconnected