style: import css for 600-weight "Source Code Pro"

Author: with-heart

frontend/src/pages/_app.tsx

@@ -5,6 +5,7 @@ import { ChakraProvider } from '@chakra-ui/react';
 import { useTranslation } from 'next-i18next';
 import '@fontsource/inter/variable-full.css';
 import '@fontsource/source-code-pro/400.css';
+import '@fontsource/source-code-pro/600.css';
 import { AppProps } from 'next/app';
 
 import { DEVELOPER_DAO_WEBSITE } from '../utils/DeveloperDaoConstants';