Documentation search is broken, hangs on "Searching..."

[nbelakovski-mssm]

Describe the bug
The docs at https://pydicom.github.io/pynetdicom/stable/ are not searchable. Whenever I search for anything I get a screen that says "Searching" and there's 3 dots that act as a loading indicator, but the search results never load. This happens even when searching for things that are obviously in the documentation, so it's not simply failing to find the query

Expected behavior
See above

Steps To Reproduce
See above

Your environment
N/A

I see some errors in the console about jquery not being loaded, and the search functionality seems to be behind a jQuery call so that seems like a strong indicator.

[mrbean-bremen]

Probably the same problem as had been in pydicom.

[mrbean-bremen]

The related issue in sphinx_rtd_theme, which has been filed in connection with the pydicom issue, does not look like it will be fixed anytime soon, so probably the same workaround as in pydicom should be done here.

[nbelakovski-mssm]

Thanks!