Add some safeguards to data and new button size

pages/_app.tsx

@@ -16,16 +16,17 @@ function MyApp({ Component, pageProps: { session, ...pageProps } }: AppProps) {
   const router = useRouter();
   const slug = router.query?.slug;
   const gistId = (Array.isArray(slug) && slug[0]) ?? null;
-
   useEffect(() => {
-    if (gistId && router.isReady) {
-      fetchFiles(gistId);
-    } else {
-      if (!gistId && router.isReady) {
-        state.mainModalOpen = true;
+    if (router.pathname.includes("/develop")) {
+      if (gistId && router.isReady) {
+        fetchFiles(gistId);
+      } else {
+        if (!gistId && router.isReady) {
+          state.mainModalOpen = true;
+        }
       }
     }
-  }, [gistId, router.isReady]);
+  }, [gistId, router.isReady, router.pathname]);
 
   return (
     <>