Use the Notifications Api to create a Notifications Panel on the Online Editor

The Notifications Panel should be a panel splitting the left-hand-side of the screen horizontally when the DMN Runner drawer is expanded. When it’s closed, the Notifications Panel will be displayed horizontally on the whole screen at the bottom.

When the DMN Runner is up running, an icon should be displayed on the bottom-right. In case of the DMN Runner is not running, the icon should be not displayed. The icon should have a tooltip to help users.