Add log of frontend ENV

frontend/src/App.tsx

@@ -14,8 +14,11 @@ import {
   timeUnitPage,
 } from './components/pages'
 import { Notification, NotificationContextProvider } from './components/Notification'
+import { ENV } from './util/config'
 
 const App = () => {
+  // eslint-disable-next-line no-console
+  console.log('Env: ', ENV)
   return (
     <BrowserRouter>
       <NotificationContextProvider>