Add auth route component

src/components/AuthRoute/index.tsx

@@ -0,0 +1,13 @@
+import { useReactiveVar } from '@apollo/client';
+import { Redirect, Route, RouteProps } from 'react-router-dom';
+import { tokenVar } from '../../graphql/state';
+
+const AuthRoute: React.FC<RouteProps> = ({ children, ...rest }) => {
+  const token = useReactiveVar(tokenVar);
+
+  return (
+    <Route {...rest} render={() => (!token ? children : <Redirect to='/' />)} />
+  );
+};
+
+export default AuthRoute;