Closes: #19793 - Nav menu link customization (#19794)

* Support menu items that are callables

* Fix quote on add button

* Clarify docstring to differentiate link and url

* Back out support for callables but keep alternate prerendered url param

* Make url a property on MenuItem/PluginMenuItem etc, overridable via a setter

* Use reverse_lazy instead of reverse

* Use reverse_lazy instead of reverse

netbox/utilities/templates/navigation/menu.html

@@ -41,11 +41,11 @@
               </div>
               {% for item, buttons in items %}
                 <div class="dropdown-item d-flex justify-content-between ps-3 py-0">
-                  <a href="{% url item.link %}" class="d-inline-flex flex-fill py-1">{{ item.link_text }}</a>
+                  <a href="{{ item.url }}" class="d-inline-flex flex-fill py-1">{{ item.link_text }}</a>
                   {% if buttons %}
                     <div class="btn-group ms-1">
                       {% for button in buttons %}
-                        <a href="{% url button.link %}" class="btn btn-sm btn-{{ button.color|default:"outline" }} lh-2 px-2" title="{{ button.title }}">
+                        <a href="{{ button.url }}" class="btn btn-sm btn-{{ button.color|default:"outline" }} lh-2 px-2" title="{{ button.title }}">
                           <i class="{{ button.icon_class }}"></i>
                         </a>
                       {% endfor %}