Bugfix: Fix delivery action in tray loader

[BigRoy]

Changelog Description

Fix delivery action after recent refactoring of ayon core.

Additional info

Fixes #351

Since directory and file is now separate in the delivery templates I've also made them two labels in the delivery UI for better clarity as to what is what.

Testing notes:

1. Set up a delivery template in Anatomy settings ayon+anatomy://PROJECTNAME/templates/delivery, for example like these examples:

[
  {
    "name": "client",
    "directory": "{root[work]}/{folder[name]}/{product[name]}",
    "file": "{folder[name]}_{product[name]}_{@version}<_{output}><.{@frame}>.{ext}"
  },
  {
    "name": "previews",
    "directory": "{root[work]}",
    "file": "{folder[name]}_{product[name]}_{@version}<_{output}><.{@frame}>.{ext}"
  },
  {
    "name": "per_asset",
    "directory": "{root[work]}/{folder[name]}",
    "file": "{folder[name]}_{product[name]}_{@version}<_{output}><.{@frame}>.{ext}"
  },
  {
    "name": "main",
    "directory": "{root[work]}/{project[name]}/delivery/{yyyy}-{mm}-{dd}/{hierarchy}/{folder[name]}/",
    "file": "{project[code]}_{folder[name]}_{task[short]}_{@version}<_{output}><.{@frame}>.{ext}"
  }
]

2. In Tray Launcher open the Loader
3. Using the Delivery action in the tray loader initiate a delivery to an output root.

[LiborBatek]

Meanwhile been successfully tested :)

Delivery templates created:

and in the Loader

Been tested with those 3 templates, all working well!