[BUG] Links in `ROAM_REFS` are not shown

[Dietr1ch]

Is your feature request related to a problem? Please describe.

When using the ROAM_REFS property to hold URLs (and IRIs?) as unique identifier, those are not shown on the sidebar when looking at a node.

Describe the solution you'd like

The URLs should be prepended into the Linked References section or shown separately as Identifiers of the node.

Right now I find myself duplicating the links to make the UI show them, but it's duplication that requires too much discipline to maintain.

:PROPERTIES:
:ID:       f75ec76d-ea30-40fb-abab-a6c6aa3073de
:ROAM_REFS: https://github.com/org-roam
:END:
#+title: org-roam

[[https://github.com/org-roam][github.com/org-roam]]

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