Allow wikilinks for image embedding
(discussion started in #448, where wikilink support was added)
✅ Markdown links can embed images:

❌ But wikilinks do not yet support this:
![[fido.jpg|image:width:20%]]
Prior Art
A very related project is the Advanced Slides plugin for Obsidian (750k downloads), which handles image embedding and resizing like this:
Insert image with obsidian markdown syntax
![[Image.jpg]]
---
Scale image to a width of 100 px
![[Image.jpg|100]]

I propose if possible, compatibility with this syntax would be a great option (if not default).
Thoughts
While comrak does have a wikilink extension, it doesn't appear to support embedding those links. it is notable that there are no examples of ![[]] links in their test suite.
Notes
Like I mentioned in the other issue, I think this should be comrak's responsibility. It doesn't make sense that presenterm has to parse an already parsed markdown even further, plus comrak already should have the tools/primitives to parse this. I would imagine doing this work in comrak would yield the same Image node type they emit for the normal ![]() image tags so it would work here without any changes.
Totally agreed, I'll use this issue to track my progress over there 👌
tracking upstream issue https://github.com/kivikakk/comrak/issues/535