Download alert does not close

### What went wrong?

If you start a long download, and then folllow the download alert to the downloads page, the alert can't be closed.

### What did you expect to happen?

The alert should close when you press the "close" button. I think it should have closed automatically after a time, as well, actually.

### Screenshot

Video of me pressing a button:

[screencast showing download confirmation alert. the "close" button is pressed repeatedly but nothing happens](https://github.com/UUDigitalHumanitieslab/I-analyzer/assets/43678097/54fb3bcf-710c-426e-bc8d-2ac54e2dd88b)

### Where did you find the bug?

- https://ianalyzer.hum.uu.nl

### Version

5.2

### Steps to reproduce

- I was making this [search request on I-analyzer](https://ianalyzer.hum.uu.nl/search/goodreads). Any request with over 10.000 results should work.
- Clicked "download results"
- Clicked on the "view downloads" link in the alert
- Tried to close the download alert

The problem does not happen if I close the alert immediately, only after clicking the link.

Reproduce the issue at https://ianalyzer.hum.uu.nl using the search/goodreads request, then download the results and follow the alert's "view downloads" link. Check the download alert's close behavior in that flow; done means the close button works after navigation and the alert also dismisses automatically if that remains part of the expected behavior.

Written by the indexing model from the issue text.