* Fix cable edit form with single unterminated cable
* Minor tweaks
* Instead of skipping HTMX, override the template & move form template to an "htmx" template
* Use HTMXSelect widget for A/B type selection
* Infer A/B termination types from POST data
* Fix saving cable which results in resetting of the termination type fields
* Condense view logic
---------
Co-authored-by: Jeremy Stretch <jstretch@netboxlabs.com>