No generation time displayed for videos on Media assets bar.

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have searched existing issues to make sure this isn't a duplicate
- [x] I have tested with all custom nodes disabled ([see how](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled))

### What happened?

Gen a video
Check media assets bar
Look at no generation time.

### Steps to Reproduce

Gen a video
Check media assets bar
Look at no generation time.

You can see it if you expand the media, but the video gets NO gen time displayed.

Why did you have have to remove the queue that worked perfectly before changing it for something that hasn't been requested nor tested ?

### How is this affecting you?

Feature doesn't work as expected

### ComfyUI Frontend Version

1.34.8

### Browser

Chrome/Chromium

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-7456-No-generation-time-displayed-for-videos-on-Media-assets-bar-2c86d73d365081bcafc5d9831d3dc384) by [Unito](https://www.unito.io)