Update question visibility

Author: buzahid

learn-pr/wwl-language/csharp-write-first/6-knowledge-check.yml

@@ -2,7 +2,7 @@
 uid: learn.languages.csharp-write-first.knowledge-check
 title: Module assessment
 metadata:
-  hidden_question_numbers: ["79301B93_14","79301B93_26","79301B93_47","79301B93_128"]
+  hidden_question_numbers: ["6B3CA1CB_14","6B3CA1CB_26","6B3CA1CB_108","6B3CA1CB_120","6B3CA1CB_124","6B3CA1CB_128","6B3CA1CB_88","6B3CA1CB_96"]
   ai_generated_module_assessment: true
   title: Module assessment
   description: "Knowledge check"