Fix custom chat parameters

src/Tgstation.Server.Host/Components/Interop/ChatCommand.cs

@@ -5,7 +5,7 @@ namespace Tgstation.Server.Host.Components.Interop
 	sealed class ChatCommand
 	{
 		public string Command { get; set; }
-		public string Parameters { get; set; }
+		public string Params { get; set; }
 		public User User { get; set; }
 	}
 }

src/Tgstation.Server.Host/Components/Watchdog/Watchdog.cs

@@ -1059,7 +1059,7 @@ namespace Tgstation.Server.Host.Components.Watchdog
 				var commandObject = new ChatCommand
 				{
 					Command = commandName,
-					Parameters = arguments,
+					Params = arguments,
 					User = sender
 				};