Notifications Cards

Update the notification popup design (currently a black full-screen popup over the header) for both Studio and frontend. Use floating cards in bottom-left corner. 360px max width. Border #000 0.2, Shadow 1px offset with 5px blur, #000 0.2.

Use it for all notifications created by modules, studio notifications and alerts. Timeout and disappear after 10seconds, or use cross icon to close immediately.