fix unused var

Signed-off-by: Vincenzo Scamporlino <me@vinzscam.dev>

docs/permission/plugin-authors/04-authorizing-access-to-paginated-data.md

@@ -85,7 +85,8 @@ So far we've only used the `PermissionEvaluator.authorize` method, which will ev
 
 + const transformConditions: ConditionTransformer<TodoFilter> = createConditionTransformer(Object.values(rules));
 
-  router.get('/todos', async (req, res) => {
+- router.get('/todos', async (_req, res) => {
++ router.get('/todos', async (req, res) => {
 +   const token = getBearerTokenFromAuthorizationHeader(
 +     req.header('authorization'),
 +   );

plugins/example-todo-list-backend/src/service/router.ts

@@ -43,7 +43,7 @@ export async function createRouter(
     response.send({ status: 'ok' });
   });
 
-  router.get('/todos', async (req, res) => {
+  router.get('/todos', async (_req, res) => {
     res.json(getAll());
   });