Add toast demos
In !1741 (merged), we removed toast demos.
The toast styles are not applied because the toast is attached to the
<body>
element instead of the element that contains gitlab-ui styles.We've attached the styles from gitlab-ui to
.app-styles
, in order to avoid issues with gitlab-ui styles conflicting with Pajamas CSS.For toasts to appear correctly in Pajamas, we need to build Pajamas using gitlab-ui and remove the custom styles in this repo. #487 (closed)
This issue is to serve for adding toast demos back.