search: OKD4 version and URL workaround
search: OKD4 version and URL workaround

* Avoids the current OKD 4 docs and URL discrepancy where the version
  is set to 4, but the URL contains the "latest" string instead that
  filters all results with the URL string "/4/" that is never present.
* If future "latest" versions would be represented by other version
  values, this needs to be adjusted accordingly.
* Closes #28979

Signed-off-by: Jiri Fiala <0ea6051b98b5f9cd838c60ca93563425e0562868@redhat.com>

vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs