Markdown emoji code may not display well inside fenced code blocks

[yarakos95]

Thank you very much for the very nice extension. 👍

If you write Markdown emoji code inside fenced code blocks with a specified language, the code will not display well.

To reproduce

Consider three cases. :smile: doesn't display well in fenced code blocks with a specified language.

• If markdown is specified.

  ```markdown
  smile emoji → :smile:
  ```
  

  
• If languages other than markdown is specified, e.g. python.

  ```python
  print(":smile:")
  ```
  

  
• If no language is specified.

  ```
  :smile:
  ```
  

  

This issue does not occur when trying to display non-existent Markdown emoji code.

```markdown
:no_emoji:
```

Version

• Markdown Viewer: 5.1
• Microsoft Edge: 113.0.1774.50