Correct error message when the host disconnects

After 78900842b1, the following message was shown to clients when the
host disconnected during game setup:
"Lost connection to the server.
[Invalid value undefined]"

This patch fixes that.

binaries/data/mods/public/gui/gamesetup/Pages/GameSetupPage/Panels/Chat/ChatInputPanel.js

@@ -28,7 +28,7 @@ class ChatInputPanel
 	{
 		if (message.status == "disconnected")
 		{
-			reportDisconnect(message.reason, true);
+			reportDisconnect(message, true);
 			this.chatInput.hidden = true;
 			this.chatSubmitButton.hidden = true;
 		}

binaries/data/mods/public/gui/gamesetup_mp/gamesetup_mp.js

@@ -252,7 +252,7 @@ function pollAndHandleNetworkClient(loadSavedGame)
 					if (message.reason === 16)
 						reportHandshakeDisconnect(message.mismatch_type, message.client_mismatch, message.server_mismatch);
 					else
-						reportDisconnect(message.reason, false);
+						reportDisconnect(message, false);
 					return true;
 
 				default:

binaries/data/mods/public/gui/session/NetworkStatusOverlay.js

@@ -38,7 +38,7 @@ NetworkStatusOverlay.prototype.StatusCaption = {
 	"authenticated": msg => translate("Connection to the server has been authenticated."),
 	"connected": msg => translate("Connected to the server."),
 	"disconnected": msg => translate("Connection to the server has been lost.") + "\n" +
-		getDisconnectReason(msg.reason, true),
+		getDisconnectReason(msg.reason),
 	"waiting_for_players": msg => translate("Waiting for players to connect:"),
 	"join_syncing": msg => translate("Synchronizing gameplay with other players…"),
 	"active": msg => ""