renaming app directory

app/vite.config.ts

@@ -0,0 +1,16 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [react()],
+  preview: {
+    port: 8080,
+    strictPort: true
+  },
+  server: {
+    port: 8080,
+    strictPort: true,
+    host: '0.0.0.0'
+  }
+});