Build ui for prod

ui/vite.config.ts

@@ -1,9 +1,10 @@
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
 import path from 'path'
+import { visualizer } from 'rollup-plugin-visualizer';
 
 export default defineConfig({
-  plugins: [react()],
+  plugins: [react(), visualizer()],
   resolve: {
     alias: {
       '@': path.resolve(__dirname, './src'),
@@ -13,6 +14,17 @@ export default defineConfig({
     }
   },
   server: {
-    host: true
+    host: true,
+    port: 3000
+  },
+  base: '/',
+  build: {
+    rollupOptions: {
+      output: {
+        manualChunks: {
+          vendor: ['leaflet']
+        }
+      }
+    }
   }
 })