feat: add new pages directory and _app.js file structure 🏗️

frontend/pages/_app.js

@@ -0,0 +1,10 @@
+import ReactEnviorment from './components/ReactFlow/ReactFlowEnv'
+
+export default function App() {
+  return(
+      <>
+        <ReactEnviorment/>
+      </>
+      
+  )
+};