Machine registry improvements (#10150)

* Add wrapper function for machine registry

* Decorate entrypoint functions

* Docstrings

* Fix for boolean setting

* Add playwright tests

* Use proper entrypoints

* Ensure settings are fetched correctly

* Prevent recursion of machine registry decorator

* Fix machine status display

* Enhanced warning msg

* Add simple machine sample printer

* Adds playwright tests for machine UI

* re-throw exception

* Define 'machine' plugin mixin class

* Adjust machine discovery

* Use plugin mixins for registering machine types and drivers

* Adjust unit test

* Remove plugin static files when deactivating

* Force machine reload when plugin registry changes

* Add plugins specific to testing framework

* Add test for plugin loading sequence

* Add session caching

- Significantly reduce DB hits

* Enhanced unit testing and test plugins

* Refactor unit tests

* Further unit test fixes

* Adjust instance rendering

* Display table of available drivers

* Cleanup

* ADjust unit test

* Tweak unit test

* Add docs on new mixin type

* Tweak machine overview docs

* Tweak playwright tests

* Additional unit test

* Add unit test for calling machine func

* Enhanced playwright tests

* Account for database not being ready

docs/mkdocs.yml

@@ -228,6 +228,8 @@ nav:
       - Icon Pack Mixin: plugins/mixins/icon.md
       - Label Printing Mixin: plugins/mixins/label.md
       - Locate Mixin: plugins/mixins/locate.md
+      - Machine Mixin: plugins/mixins/machine.md
+      - Mail Mixin: plugins/mixins/mail.md
       - Navigation Mixin: plugins/mixins/navigation.md
       - Notification Mixin: plugins/mixins/notification.md
       - Report Mixin: plugins/mixins/report.md