fix assets build

app/javascript/packs/application.ts

@@ -1,8 +1,3 @@
-// This file is automatically compiled by Webpack, along with any other files
-// present in this directory. You're encouraged to place your actual application logic in
-// a relevant structure within app/javascript and only use these pack files to reference
-// that code so it'll be compiled.
-
 // import Rails from "@rails/ujs"
 // import Turbolinks from "turbolinks"
 // import * as ActiveStorage from "@rails/activestorage"
@@ -14,3 +9,4 @@
 
 import "stylesheets/application";
 import "regenerator-runtime";
+import "src/index";

app/javascript/packs/react.ts

@@ -1 +0,0 @@
-import "../src/index";