Bug: Export spinner does not switch to download link

[gdower]

Description

When an export completes, the frontend does not switch to the download link and instead the spinner spins forever:

What browsers are you seeing the problem on?

Firefox

ChecklistBank URL

https://www.checklistbank.org/download/cfa645a9-e0bb-4a82-875f-d67668648963

[gdower]

In the link above, it will show the export as completed with the download link but unless you reload the page after the export completes, the spinner will just keep spinning.