fix(website): fix blank support-us page

https://stackoverflow.com/questions/79111239/astro-project-renders-blank-page-on-cloudflare-with-no-console-errors

Author: Han2-Ro

astro.config.mjs

@@ -35,6 +35,9 @@ export default defineConfig({
   trailingSlash: 'never',
 
   vite: {
+    define: {
+      'process.env': process.env,
+    },
     plugins: [tailwindcss()],
   },
 });