Markdown preview: Wrong bash syntax highlighting

[max06]

Does this issue occur when all extensions are disabled?: Yes

• Version: 1.95.2
• Commit: e865366
• Date: 2024-11-07T11:07:22.054Z
• Electron: 32.2.1
• ElectronBuildId: 10427718
• Chromium: 128.0.6613.186
• Node.js: 20.18.0
• V8: 12.8.374.38-electron.0
• OS: Linux x64 6.6.62 (NixOS)

Steps to Reproduce:

1. Create a new markdown file
2. Paste following content:

# Sample

```sh
nix run github:nix-community/nixos-anywhere -- --flake .#guest-"$TYPE" root@"$TARGET"
` ` ` 

end of sample

3. Remove spaces from closing code-fences in the sample
4. Open preview to the side.

Result:

A # only starts a comment in bash when there's a leading space in front of it, or if it's at the beginning of the line.
The code editor highlights it correctly, the preview doesn't. And github is wrong here as well.

[mjbvz]

Would be fixed by #91279