HOLI-5486: add turfjs dependency

app/deps.ts

@@ -4,3 +4,4 @@ export {
   createYoga,
 } from "https://cdn.skypack.dev/graphql-yoga@3.0.0-next.4";
 export { useResponseCache } from "https://cdn.skypack.dev/@graphql-yoga/plugin-response-cache@1.0.0-next.4";
+export * as turf from "https://esm.sh/@turf/turf@6.5.0";