in openstackdocstheme we upgrade to Bootstrapv5 (5 years later than
should have done). There are major changes that need to be addressed to
make os-api-ref look nearly like it was before
- bootstrap dropped jQuery and thus extension js need to be initialized
differently
- icons dropped from bootstrap
- combobox (dropdown) is part of the bundled bootstrap and no known
project uses it anyway (so no way to try)
- expand links and text replacement doesn't work anyway without anybody
noticing (or at least not with browsers I use).
Depends-by: https://review.opendev.org/c/openstack/openstackdocstheme/+/931837
Change-Id: I907562ea2646a0316dc99befcdf93c0f0bf7765c