perf: reduce bundle size (closes #1607) (#1689)

quartz/plugins/emitters/404.tsx

@@ -37,7 +37,6 @@ export const NotFoundPage: QuartzEmitterPlugin = () => {
 
       const url = new URL(`https://${cfg.baseUrl ?? "example.com"}`)
       const path = url.pathname as FullSlug
-      const externalResources = pageResources(path, resources)
       const notFound = i18n(cfg.locale).pages.error.title
       const [tree, vfile] = defaultProcessedContent({
         slug,
@@ -45,6 +44,7 @@ export const NotFoundPage: QuartzEmitterPlugin = () => {
         description: notFound,
         frontmatter: { title: notFound, tags: [] },
       })
+      const externalResources = pageResources(path, vfile.data, resources)
       const componentData: QuartzComponentProps = {
         ctx,
         fileData: vfile.data,