added access variable to exams soo we can distinguish private, public and confidential exams and also bugfixes and improvements

src/pages/api/code/index.ts

@@ -32,6 +32,7 @@ async function get(req: NextApiRequest, res: NextApiResponse) {
 	}
 
 	const { entity } = req.query as { entity?: string };
+
 	const snapshot = await db.collection("codes").find(entity ? { entity } : {}).toArray();
 
 	res.status(200).json(snapshot);