[BUG] App.tsx missing React error boundary - any render error crashes the entire page to a blank screen

[anshul23102]

Description

src/App.tsx renders all routes and shared components without wrapping them in a React Error Boundary. A single unhandled JavaScript error thrown during rendering (e.g., accessing a property on undefined in a component) unmounts the entire React tree, leaving users with a blank white page and no recovery path.

Steps to Reproduce

1. Open the running app in a browser with DevTools open.
2. In the console, manually throw an error inside a mounted component or trigger a bad data path in src/data/activities/index.js.
3. Observe the full page goes blank with only a console error - no fallback UI is shown.

Root Cause

No <ErrorBoundary> component wraps the route tree in src/App.tsx.

Impact

Any runtime rendering error - including those from third-party component updates - causes complete page loss with no way for users to recover without a hard refresh.

Proposed Fix

Create src/shared/ErrorBoundary.tsx:

import { Component, ReactNode } from "react";
class ErrorBoundary extends Component<{ children: ReactNode }, { hasError: boolean }> {
  state = { hasError: false };
  static getDerivedStateFromError() { return { hasError: true }; }
  render() {
    if (this.state.hasError)
      return <div style={{ padding: "2rem" }}>Something went wrong. <button onClick={() => this.setState({ hasError: false })}>Retry</button></div>;
    return this.props.children;
  }
}
export default ErrorBoundary;

Wrap routes in App.tsx:

<ErrorBoundary>
  <RouterProvider router={router} />
</ErrorBoundary>

[anshul23102]

@singhtrivendra Hi! I came across this issue and I would love to work on it as part of GSSoC '26.

I have reviewed the problem description carefully and am confident I can deliver a well-tested, production-ready fix within the contribution timeline. Please let me know if you need any additional context or have specific implementation preferences before I get started.

Could you please assign this issue to me?

/assign
/claim