fix: error handling for session recorder script.

web/app/layout.tsx

@@ -93,7 +93,7 @@ export default function RootLayout({ children }: { children: React.ReactNode })
           {`(function(c,l,a,r,i,t,y){
               c[a]=c[a]||function(){(c[a].q=c[a].q||[]).push(arguments)};
               t=l.createElement(r);t.async=1;t.src="https://www.clarity.ms/tag/"+i;
-              y=l.getElementsByTagName(r)[0];y.parentNode.insertBefore(t,y);
+              y=l.getElementsByTagName(r)[0];if(y)y.parentNode.insertBefore(t,y);
           })(window, document, "clarity", "script", "${process.env.NEXT_PUBLIC_SESSION_RECORDER_KEY}");`}
         </Script>
       )}