As an Editor, I want to create content on the fly from the Dashboard

Prototype: https://projects.invisionapp.com/d/main#/console/19077112/397956646/preview

Note:

1. After the location is selected - When the editor clicks on the '+' sign in the UDW can you add the focus on the filter field as shown in the prototype. 
2. Content item edit view
   • This will occupy fulll screen same as the UDW
   • When the user clicks the 'Cancel' button then they will be navigated back to the UDW with the path selected
   • When the user clicks the 'Publish' button then they will be navigated to the content item view of the published item.
3. Open question - Can the language selector have the prioritized language of the site access selected by default instead of the first language in the dropdown?