fix: Fixes missing methods. Adds more admin gump world building (#1675)

### Summary
- Fixe commands missing in helpinfo.
- Adds more admin gump world building options. 

### Screenshots

<img src="https://github.com/modernuo/ModernUO/assets/3953314/3001aa65-4f46-4ba4-89ed-745fefdd27c3" width="50%">

Projects/UOContent/Commands/Object Creation/DecorateMag.cs

@@ -24,7 +24,7 @@ namespace Server.Commands
         }
 
         [Usage("DecorateMag")]
-        [Description("Generates world decoration.")]
+        [Description("Generates world decoration for Magincia after it was ruined.")]
         private static void DecorateMag_OnCommand(CommandEventArgs e)
         {
             m_Mobile = e.Mobile;