[FEATURE]: Add markdown preview toggle in file viewer sidebar

[southpolesteve]

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

When viewing markdown files (.md, .mdx) in the file viewer sidebar, users currently see raw markdown with syntax highlighting. It would be helpful to have an option to render the markdown as formatted content.

Right now md files are effectively state for my non-coding use cases and I would like to view them formatted.

TLDR: Help me uninstall Obsidian

[JonasGao]

If preview with a outline will be better better 😁

[briangruntable]

Agree with this. Currently using obsidian just to read it

[JonasGao]

@briangruntable @southpolesteve If you are also using OpenCode remotely, such as OpenCode web. You can give my newly created OpenMKView a try.

The project is still in the development stage, but the basic functions have all been completed. For now, it hasn't been packaged (released) yet. You may need use 'npm run dev' or package manually yourself.

https://github.com/dev-zapi/openmkview

[fengzhi09]

mermaid 展示也需要

[Kiruno-lz]

Agree with this

Without markdown rendering, it will really be hard to read.

Especially when there are a lot of md files that need to be reviewed.

At present, trae is used to review and commit, hoping to fully support it on opencode.