Allow for linking to Obsidian within Figma files

We use Obsidian for our internal documentation and frequently share with one another links that start with obsidian://. Unfortunately, Figma sees this link type as invalid and, therefore, we must then paste it in as one big ugly blob. It would be nice for Figma to recognise that there are other protocols being registered on a computer and could allow these types of links in our design docs.