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/GenCommands.cs

@@ -15,7 +15,7 @@ public static class GenCommands
         CommandSystem.Register("GenCommands", AccessLevel.Developer, GenCommandsWebpage_OnCommand);
     }
 
-    [Usage("GenCommands [<command>]")]
+    [Usage("GenCommands")]
     [Aliases("GenCmdWeb")]
     [Description("Generates a webpage to the web folder with a list of all commands.")]
     private static void GenCommandsWebpage_OnCommand(CommandEventArgs e)