Generate API docs (#6319)

* Add basic task for generating apidocs

* Fix SPECTACTULAR_SETTINGS

- Some provided options were not correct

* Update .gitignore

* Fix for duplicated API path

- `/api/plugins/activate` routed to PluginActivate view
- Must be associated with a specific plugin ID

* By default, fail if warnings are raised

* Use GenericAPIView for GetAuthToken

* Use GenericAPIView for RolesDetail endpoint

* Refactor more endpoints to use GenericApiView

* More API cleanup

* Add extra type hints for exposed methods

* Update RoleDetails endpoint

- Specify serializer
- Use RetrieveAPI class type

* More type hints

* Export API docs as part of CI

* add more api views docs

* even more docs

* extend tests to api-version

* simplify serializer

* and more docs

* fix serializer

* added more API docs

* clean diff

* Added APISearch base

* do not assume you know the user
he might be anonymously creating the schema ;-)

* set empty serializer where no input is needed

* Use dummy model for schema generation

* fix OpenAPI docs section

* Update .github/workflows/qc_checks.yaml

Co-authored-by: Matthias Mair <code@mjmair.com>

* REmove duplicate commands

* Ignore warnings in CI

---------

Co-authored-by: Matthias Mair <code@mjmair.com>

InvenTree/stock/models.py

@@ -184,7 +184,7 @@ class StockLocation(
     )
 
     @property
-    def icon(self):
+    def icon(self) -> str:
         """Get the current icon used for this location.
 
         The icon field on this model takes precedences over the possibly assigned stock location type