- in dropdown details is renamed into property and now open a modal to update document properties
   (no longer redirect on legacy page)
 - if document has custom properties, then a link is displayed in modal header information:
   "update custom properties" => this link redirect user on legacy page, it will be removed
   when custom properties can be removed with REST
 - there a spinner when modal is loading
 - if update of properties fails, then we should have an error message in the update modal
 - there is an entry in the root folder dropdown to update the root folder of a project (via the modal)
mockeup here: 
https://www.figma.com/file/Q9QsjKZ8QeOtMcR9MDYtDtb1/Docman---New-document-modal?node-id=0%3A1