Prevent white screen: wrap ActivityFeed in error boundary and improve ClientProviders error handling

app/components/ClientProviders.tsx

@@ -31,20 +31,39 @@ export default function ClientProviders({
     setMounted(true);
     // Check if we're on a 404 page by looking for the data attribute or pathname
     const check404 = () => {
-      if (typeof window !== "undefined") {
-        const has404Component = document.querySelector('[data-404-page]');
-        const is404Path = pathname === '/404' || window.location.pathname === '/404' || window.location.pathname.includes('404');
-        setIs404Page(!!has404Component || is404Path);
+      try {
+        if (typeof window !== "undefined" && typeof document !== "undefined") {
+          const has404Component = document.querySelector('[data-404-page]');
+          const is404Path = pathname === '/404' || (window.location && (window.location.pathname === '/404' || window.location.pathname.includes('404')));
+          setIs404Page(!!has404Component || is404Path);
+        }
+      } catch (error) {
+        // Silently fail - 404 detection is not critical
+        if (process.env.NODE_ENV === 'development') {
+          console.warn('Error checking 404 status:', error);
+        }
       }
     };
     // Check immediately and after a short delay
-    check404();
-    const timeout = setTimeout(check404, 100);
-    const interval = setInterval(check404, 500);
-    return () => {
-      clearTimeout(timeout);
-      clearInterval(interval);
-    };
+    try {
+      check404();
+      const timeout = setTimeout(check404, 100);
+      const interval = setInterval(check404, 500);
+      return () => {
+        try {
+          clearTimeout(timeout);
+          clearInterval(interval);
+        } catch {
+          // Silently fail during cleanup
+        }
+      };
+    } catch (error) {
+      // If setup fails, just return empty cleanup
+      if (process.env.NODE_ENV === 'development') {
+        console.warn('Error setting up 404 check:', error);
+      }
+      return () => {};
+    }
   }, [pathname]);
 
   // Wrap in multiple error boundaries to isolate failures