Remove body padding added by v6

Author: dmt0

.storybook/config.js

@@ -0,0 +1,3 @@
+module.exports = {
+  stories: ['../src/__stories__/index.js'],
+};

.storybook/main.js

@@ -0,0 +1,3 @@
+export const parameters = {
+  layout: 'fullscreen',
+};