Refactor page components

pages/_app.tsx

@@ -1,6 +1,6 @@
 import type { AppProps } from 'next/app';
 import { ChakraProvider } from '@chakra-ui/react';
-import { roadmapTheme } from './theme';
+import { roadmapTheme } from '../lib/theme';
 import 'prism-themes/themes/prism-shades-of-purple.css';
 
 function MyApp({ Component, pageProps }: AppProps) {