fix: super minor ts query example fix

Author: jherr

templates/react/add-on/tanstack-query/assets/src/routes/demo.tanstack-query.tsx.ejs

@@ -13,7 +13,7 @@ function TanStackQueryDemo() {
     queryFn: () =>
       fetch('https://swapi.dev/api/people')
         .then((res) => res.json())
-        .then((data) => data.results as { name: string }[]),
+        .then((d) => d.results as { name: string }[]),
     initialData: [],
   })