add reset_all and undo buttons to error boundary. no styling

sites/shared/components/error-boundary.js

@@ -1,39 +0,0 @@
-import React from 'react';
-
-class ErrorBoundary extends React.Component {
-  constructor(props) {
-    super(props);
-    this.state = { hasError: false };
-  }
-
-  static getDerivedStateFromError(error) {
-    // Update state so the next render will show the fallback UI.
-    return { hasError: true };
-  }
-
-  componentDidCatch(error, errorInfo) {
-    // You can also log the error to an error reporting service
-    console.log(error, errorInfo);
-  }
-
-  componentDidUpdate(prevProps) {
-    if (this.props.gist !== prevProps.gist) {
-      this.setState({hasError: false})
-    }
-  }
-
-  render() {
-    if (this.state.hasError) {
-      // You can render any custom fallback UI
-      return this.props.errorView  || (<h1>Something went wrong.</h1>);
-    }
-
-    try {
-      return this.props.children;
-    } catch(e) {
-      return this.props.errorView  || (<h1>Something went wrong.</h1>);
-    }
-  }
-}
-
-export default ErrorBoundary