add prettier code formater

frontend/vite.config.ts

@@ -1,18 +1,18 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
-import path from 'path';
+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react";
+import path from "path";
 
 // https://vite.dev/config/
 export default defineConfig({
-  plugins: [react()],
-  resolve: {
-    alias: {
-      '@': path.resolve(__dirname, 'src'),
+    plugins: [react()],
+    resolve: {
+        alias: {
+            "@": path.resolve(__dirname, "src"),
+        },
     },
-  },
-  server: {
-    watch: {
-      usePolling: true,
+    server: {
+        watch: {
+            usePolling: true,
+        },
     },
-  }
-})
+});