fix: log udp client send failures when disconnected

Agent-Logs-Url: https://github.com/PepperDash/Essentials/sessions/761a7a78-c51f-474b-9000-baa9a232c0d0

Co-authored-by: jonnyarndt <21110580+jonnyarndt@users.noreply.github.com>

src/PepperDash.Core/Comm/GenericUdpClient.cs

@@ -336,7 +336,10 @@ namespace PepperDash.Core
 
                 var udpClient = client;
                 if (!IsConnected || udpClient == null)
+                {
+                    Debug.Console(1, Debug.ErrorLogLevel.Warning, "GenericUdpClient '{0}': Cannot send bytes because the client is not connected", Key);
                     return;
+                }
 
                 udpClient.Send(bytes, bytes.Length);
             }