rt: fix default queue

nixbld-etc-nixos/rt.nix

@@ -61,7 +61,7 @@ let
       Set($WebSecureCookies, 1);
 
       # Web Interface (Base configuration)
-      Set($DefaultQueue, 'General'); # Defaults to the first from the alphabet
+      Set($DefaultQueue, 'Helpdesk'); # Defaults to the first from the alphabet
       Set($RememberDefaultQueue, 1);
       Set($CanonicalizeRedirectURLs, 1);
       Set($CanonicalizeURLsInFeeds, 1);