add UI kit page placeholder

frontend/uikit.html

@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="ru">
+  <head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>UI Kit</title>
+    <link href="css/style.css" rel="stylesheet">
+  </head>
+  <body>
+    ui kit.
+  </body>
+</html>

frontend/vite.config.js

@@ -1,7 +1,16 @@
 import { defineConfig } from 'vite'
+import { resolve } from 'path';
 import react from '@vitejs/plugin-react'
 
 export default defineConfig({
+  build: {
+    rollupOptions: {
+      input: {
+        main: resolve(__dirname, 'index.html'),
+        uikit: resolve(__dirname, 'uikit.html'),
+      },
+    },
+  },
   plugins: [react()],
   server: {
     port: 5173,