cleaned up some namespace discrepancies

fixed the coloring for custom groups translation
add reserved slots
add webhook project to show notifications in discord

Application/Core/ClientAuthentication.cs

@@ -65,6 +65,12 @@ namespace IW4MAdmin.Application.Core
 
         public IList<Player> GetAuthenticatedClients()
         {
+            if (AuthenticatedClients.Values.Count > 18)
+            {
+                Program.ServerManager.GetLogger().WriteWarning($"auth client count is {AuthenticatedClients.Values.Count}, this is bad");
+                return AuthenticatedClients.Values.Take(18).ToList();
+            }
+
             return AuthenticatedClients.Values.ToList();
         }