fix: should parse responses using the form def

src/app/modules/submission/encrypt-submission/encrypt-submission.controller.ts

@@ -141,8 +141,12 @@ const submitEncryptModeForm = async (
     encryptedPayload
 
   // This is because NRIC masking is done in the controller, but we parse the fields in the
-  // middleware for encrypt forms
-  const parsedResponses = new ParsedResponsesObject(req.body.responses)
+  // middleware for encrypt forms. Only being used for email notifications
+  // In the case of unwrapOr, the isVisible field will be stripped out
+  const parsedResponses = ParsedResponsesObject.parseResponses(
+    formDef,
+    req.body.responses,
+  ).unwrapOr(new ParsedResponsesObject(req.body.responses))
 
   // Checks if user is SPCP-authenticated before allowing submission
   let userName