[Bug]: "Load Image From Output" node has navigation arrows not working

### Custom Node Testing

- [x] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Frontend Version

I know that the node is in Beta, but left and right arrow are not working as expected.

### Expected Behavior

Left arrow go to prev image.
Right arrow go to next image.

### Actual Behavior

Left arrow does nothing.
Right arrow go to the last image instead of the next one.

### Steps to Reproduce

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### Debug Logs

```powershell
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```

### Browser Logs

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### Setting JSON

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### What browsers do you use to access the UI ?

_No response_

### Other Information

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-4331-Bug-Load-Image-From-Output-node-has-navigation-arrows-not-working-2246d73d365081c7a766c4386a087c72) by [Unito](https://www.unito.io)

The issue identifies the "Load Image From Output" node but names no file, test, or code entry point. Start by locating that node's frontend implementation and the related navigation behavior, then reproduce the left- and right-arrow cases; done means the left arrow selects the previous image and the right arrow selects the next image rather than the last image.

Written by the indexing model from the issue text.