[BUG] toc: true Not working on MacOS

[pengyuwei]

Describe the bug
The same document can work normally as described in the document on Windows, with a directory tree appearing on the left side. However, on MacOS, no matter how configured, the directory tree cannot appear.

Environment

• OS: MacOS 10.15.7, Windows11Pro 23H2 22631.4602
• VSCode: 1.95.3 (Universal，MacOS), 1.96.0（Windows）
• Markdown Preview Enhanced: v0.8.15

To Reproduce
Steps to reproduce the behavior:

1. Preview Markdown
2. Ctrl+S or File Menu/Save
3. Open the automatically generated HTML page using a browser

Expected behavior
The directory tree appears on the left, or the expand button of the directory tree appears

Markdown file

html:
  embed_local_images: false
  embed_svg: true
  offline: true
  toc: true
export_on_save:
  html: true
toc:
  depth_from: 1
  depth_to: 4
  ordered: false

# Tile
...

toc: true
or
According to the documentation, not writing TOC will generate hidden TOC, which can be expanded by clicking the button to expand the left directory tree

Screenshots
None

Additional context
It's not a syntax or usage issue, as the same document can appear in the left directory tree normally under Windows