add elevation tool

website/vite.config.ts

@@ -1,7 +1,8 @@
 import { sveltekit } from '@sveltejs/kit/vite';
 import { enhancedImages } from '@sveltejs/enhanced-img';
 import { defineConfig } from 'vite';
+import { nodePolyfills } from 'vite-plugin-node-polyfills'
 
 export default defineConfig({
-    plugins: [enhancedImages(), sveltekit()]
+    plugins: [nodePolyfills(), enhancedImages(), sveltekit()]
 });