Refactor: Implement SmartCube renderer, improve UI styling, and fix gaps

vite.config.js

@@ -1,11 +1,12 @@
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
+import pkg from './package.json'
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [vue()],
   define: {
-    '__APP_VERSION__': JSON.stringify(process.env.npm_package_version),
+    '__APP_VERSION__': JSON.stringify(pkg.version),
   },
   server: {
     port: 5174,