Styling changes

- Replace css.gg with fontawesome
- Update more colors (for light & dark themes)

webpack.common.babel.js

@@ -3,6 +3,7 @@ import { CleanWebpackPlugin } from 'clean-webpack-plugin';
 import MiniCssExtractPlugin from 'mini-css-extract-plugin';
 
 export default {
+  resolve: { extensions: ['.js', '.scss'] },
   entry: {
     main: ['./src/newsreader/js/index.js', './src/newsreader/scss/index.scss'],
   },