Vite 5 (#1813)

use vite 5. fix complaint about CJS: don't use CJS for postcss config

Author: david-crespo

.prettierrc.js

@@ -6,7 +6,7 @@
  * Copyright Oxide Computer Company
  */
 
-module.exports = {
+export default {
   // note: it seems like tailwind has to be last for it to work
   plugins: ['@ianvs/prettier-plugin-sort-imports', 'prettier-plugin-tailwindcss'],
   printWidth: 92,