first commit

web/pages/exception/403.tsx

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+import React from 'react';
+import {Button, Card, Result} from 'antd';
+
+const App: React.FC = () => (
+  <Card variant={"borderless"}>
+    <Result
+      status="403"
+      title="403"
+      subTitle="Sorry, you are not authorized to access this page."
+      extra={<Button type="primary">Back Home</Button>}
+    />
+  </Card>
+);
+
+export default App;

web/pages/exception/404.tsx

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+import React from 'react';
+import {Button, Card, Result} from 'antd';
+
+const App: React.FC = () => (
+  <Card variant={"borderless"}>
+    <Result
+      status="404"
+      title="404"
+      subTitle="Sorry, the page you visited does not exist."
+      extra={<Button type="primary">Back Home</Button>}
+    />
+  </Card>
+
+);
+
+export default App;

web/pages/exception/500.tsx

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+import React from 'react';
+import {Button, Card, Result} from 'antd';
+
+const App: React.FC = () => (
+  <Card variant={"borderless"}>
+    <Result
+      status="500"
+      title="500"
+      subTitle="Sorry, something went wrong."
+      extra={<Button type="primary">Back Home</Button>}
+    />
+  </Card>
+
+);
+
+export default App;