fix page title for preview

Author: andrewjschuang

docs-v2/theme.config.tsx

@@ -12,17 +12,7 @@ import DocSearch from "./components/DocSearch";
 const config: DocsThemeConfig = {
   head: function Head() {
     const router = useRouter()
-    const { frontMatter } = useConfig()
-
-    let pageTitle = frontMatter?.title;
-    // If no title in front matter, derive it from the URL
-    if (!pageTitle) {
-      const segments = router.asPath.replace(/\/$/, "").split("/");
-      pageTitle = segments[segments.length - 1];
-      // Replace dashes/underscores with spaces and capitalize each first letter
-      pageTitle = pageTitle.replace(/[-_]/g, " ");
-      pageTitle = pageTitle.replace(/\b\w/g, (char) => char.toUpperCase());
-    }
+    const { title } = useConfig()
 
     return (
       <>
@@ -31,7 +21,7 @@ const config: DocsThemeConfig = {
           ? ""
           : router.route}`} />}
         <link rel="icon" href="/docs/favicon.ico" />
-        <meta property="og:title" content={`${pageTitle} — Pipedream`} />
+        <meta property="og:title" content={`${title} — Pipedream`} />
       </>
     )
   },