This story introduces the new document modal, it only deals with empty/wiki and link types:

• The modal has "standard fields": title + description
• We do not let users submit permissions yet, for now new documents will inherit from the parent folder's permissions.
• document metadata are available:
  • if parent folder has predefined permissions they are displayed in modal
  • we need a new REST route for metadata retrieval:

docman_items/:id/metadata [
{ name, type, values ...}
]

• We need a new REST route to create the new items:

PATCH docman_items/:id

Modal action is displayed only if user has permission to update folder content:

• If he's a mere mortal the "+ New document button" is not displayed
• The empty state is differerent
• Maybe the svg is different?

If there is an error (load metadata/item creation) then the error message is displayed on top of modal and scrollbar is reinitialized.