[Bug]: Copying images from the Output / Save Image section doesn’t work in desktop build 0.3.76

### App Version

Node 2 desktop version 0.3.76
Windows (mention your exact version, e.g., Windows 11 22H2)

### Expected Behavior

The actual image should be copied to the Windows clipboard, just like it worked in the previous Legacy version.

### Actual Behavior

Only the positive prompt text is copied; the image itself is not copied to the clipboard.

### Steps to Reproduce

Open Node 2 desktop version 0.3.76.

Generate an image.

Go to the Output / Save Image section.

Right-click the image and select Copy.

### Debug Logs

```powershell

```

### Browser Logs

_No response_

### Settings JSON

_No response_

### Other

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-7110-Bug-Copying-images-from-the-Output-Save-Image-section-doesn-t-work-in-desktop-bui-2be6d73d365081e6b9b2eafbf05444ba) by [Unito](https://www.unito.io)