Fix storybook storysource

Author: leandrowd

.storybook/main.js

@@ -16,6 +16,12 @@ module.exports = {
             include: path.resolve(__dirname, '../src'),
         });
 
+        config.module.rules.push({
+            test: /stories\/(.+).tsx$/,
+            loaders: [require.resolve('@storybook/addon-storysource/loader')],
+            enforce: 'pre',
+        });
+
         config.module.rules.push({
             test: /\.(ts|tsx)$/,
             use: [