Web IDE: image preview for lfs files does not work
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### Summary
When using the new VSCode Web IDE, image files stored via Git LFS are not previewed/rendered. This
applies for selecting the file directly and for the markdown preview if the file is included in
a markdown file.
### Steps to reproduce
1. Clone your project
2. Activate git lfs: `git lfs install`
3. Track image files: `git lfs track "*.jpg"`
4. Add image file to your repository
5. push
6. Open the Web IDE
7. Open the image file
### Example Project
https://gitlab.com/tulkas-hg/web-ide-markdown-preview-for-images
### What is the current *bug* behavior?
Image files stored via git lfs are not rendered in the new VSCode Web IDE.
#### LFS Image preview in Web IDE

#### Markdown preview in Web IDE including images stored via LFS

### What is the expected *correct* behavior?
Image files stored via Git LFS should render using the Web IDE. It already works fine when using `Edit` or when browsing the project:
- [LFS image](https://gitlab.com/tulkas-hg/web-ide-markdown-preview-for-images/-/blob/main/trees.jpg)

- [Markdown Preview](https://gitlab.com/tulkas-hg/web-ide-markdown-preview-for-images/-/blob/main/README.md)

### Output of checks
<!-- If you are reporting a bug on GitLab.com, uncomment below -->
This bug happens on GitLab.com
#### Results of GitLab environment info
<!-- Input any relevant GitLab environment information if needed. -->
- `GitLab Enterprise Edition 16.2.0-pre d1421d285ff`
issue