Improved code styling

client/src/App/index.jsx

@@ -5,7 +5,7 @@ import BaseStyles from './BaseStyles';
 import Toast from './Toast';
 import Routes from './Routes';
 
-// We're importing css because @font-face in styled-components causes font files
+// We're importing .css because @font-face in styled-components causes font files
 // to be constantly re-requested from the server (which causes screen flicker)
 // https://github.com/styled-components/styled-components/issues/1593
 import './fontStyles.css';