Add autocomplete to controlmob (#36234)

Expensive for what it is just really annoying in debug to not have it. Worst case I just make it debug only and we don't add it for release.

Content.Server/Administration/Commands/ControlMob.cs

@@ -43,5 +43,13 @@ namespace Content.Server.Administration.Commands
 
             _entities.System<MindSystem>().ControlMob(player.UserId, target.Value);
         }
+
+        public CompletionResult GetCompletion(IConsoleShell shell, string[] args)
+        {
+            if (args.Length != 1)
+                return CompletionResult.Empty;
+
+            return CompletionResult.FromOptions(CompletionHelper.NetEntities(args[0], entManager: _entities));
+        }
     }
 }