Add separate chat panel for spectators and players

Forces the chat and performance panels to be re-initialized when a
player transitions to spectators. This ensures that spectators don't
get to see faction themed widgets.

OpenRA.Mods.Common/Widgets/Logic/Ingame/LoadIngameChatLogic.cs

@@ -0,0 +1,25 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2021 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets.Logic
+{
+	public class LoadIngameChatLogic : ChromeLogic
+	{
+		[ObjectCreator.UseCtor]
+		public LoadIngameChatLogic(Widget widget, World world)
+		{
+			var root = widget.Get("CHAT_ROOT");
+			Game.LoadWidget(world, "CHAT_PANEL", root, new WidgetArgs() { { "isMenuChat", false } });
+		}
+	}
+}