fix(client): wrong script async check

src/client/app/composables/head.ts

@@ -87,7 +87,7 @@ function createHeadElement([tag, attrs, innerHTML]: HeadConfig) {
   if (innerHTML) {
     el.innerHTML = innerHTML
   }
-  if (tag === 'script' && !attrs.async) {
+  if (tag === 'script' && attrs.async == null) {
     // async is true by default for dynamically created scripts
     ;(el as HTMLScriptElement).async = false
   }