refactor(web): remove typescript

packages/web/src/hooks/useApp.js

@@ -0,0 +1,12 @@
+import { useQuery } from '@apollo/client';
+import { GET_APP } from 'graphql/queries/get-app';
+export default function useApp(key) {
+  const { data, loading } = useQuery(GET_APP, {
+    variables: { key },
+  });
+  const app = data?.getApp;
+  return {
+    app,
+    loading,
+  };
+}