Recovered from backup

frontend/vite.config.js

@@ -0,0 +1,20 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [react()],
+  build: {
+    rollupOptions: {
+      output: {
+        manualChunks: {
+          "react-vendors": ["react", "react-dom"],
+          "leaflet": ["leaflet"],
+          "chartjs": ["chart.js"]
+        }
+      }
+    },
+    outDir: 'dist',
+  },
+  publicDir: 'public',
+})