Fixes: #18568 Update mkdocstrings and adapt config (#18841)

* Fixes: #18568 Update mkdocstrings and adapt config

* Fixed some output formatting errors

When trying to compare the output from "mkdocstrings[python-legacy]==0.27.0" and
"mkdocstrings[python]==0.28.2" I encountered some HTML errors:
- <div> inside a <p>
- unescaped non-tags <pk>

mkdocs.yml

@@ -28,12 +28,7 @@ plugins:
   - mkdocstrings:
       handlers:
         python:
-          setup_commands:
-            - import os
-            - import django
-            - os.chdir('netbox/')
-            - os.environ.setdefault("DJANGO_SETTINGS_MODULE", "netbox.settings")
-            - django.setup()
+          paths: ["netbox"]
           options:
             heading_level: 3
             members_order: source