Fix Cloudflare Pages build (#1285)

* fix(temp): remove box shadows from tailwind config

* fix(temp): "polyfill" global during build process

* refactor: use `import.meta` instead of deprecated `process`

* oops: replace `process.server` as well

apps/frontend/src/composables/theme.js

@@ -48,7 +48,7 @@ export const updateTheme = (value, updatePreference = false) => {
     if (updatePreference) theme.value.preference = value;
   }
 
-  if (process.client) {
+  if (import.meta.client) {
     document.documentElement.className = `${theme.value.value}-mode`;
   }