Closes #14917: Replace slim-select with tom-select (#15080)

* Experimenting

* Remove testing resources

* Replace ApiSelect with TomSelect

* Add color support

* Add clear button

* Clear cached options when searching dynamic selects

* Add support for static parameters

* Refactor TomSelect implementation

* Add dynamic parameter support

* Limit number of options to 100

* Remove redundant api_url definitions for user model

* Add support for disabled indicator

* Remove obsolete value-field attr on dynamic select widgets

* Remove obsolete fetch_trigger kwarg from dynamic model choice widgets

* Remove obsolete empty_label kwarg from dynamic model choice widgets

* Add support for API path variables

* Add support for setting a 'null' option

* Annotate depth for recursive hierarchies

* Misc cleanup

* Remove obsolete APISelect code

* Remove slim-select & just-debounce-it

* Clean up type validation

* Closes #14237: Clear child selections on change to parent selection

* Use an MD icon for the clear button

* Use an MD icon for the clear button

* Explain why noUnusedParameters is disabled

netbox/vpn/forms/model_forms.py

@@ -423,8 +423,7 @@ class L2VPNTerminationForm(NetBoxModelForm):
         queryset=L2VPN.objects.all(),
         required=True,
         query_params={},
-        label=_('L2VPN'),
-        fetch_trigger='open'
+        label=_('L2VPN')
     )
     vlan = DynamicModelChoiceField(
         queryset=VLAN.objects.all(),