[bug] Stateless entities can be toggled and shown as unavailable

[kennymc-c]

Is there an existing issue for this?

• I have searched the existing issues

Description

With the new web configurator entities that don’t support the on_off or toggle feature and have no state attribute assigned because they are stateless an unavaliable state is shown in the integrations entites list and there's even a toggle button shown in the entity editor which seems to toggle a virtual state of the entity which the integration does not even notice.
As a workaround I've addded a state:on attribute to the entity definition which I didn't had to do with the old configurator before.
But after running the setup for the first time the entities are shown as off instead. Using the toogle button seem to then use the correct on state.

Maybe the state attributes and toggle button should not be shown at all if the entity is stateless and doesn’t support the on_off feature. As far as I know media player entities doesn’t even support the unavailable attribute and only On/Off.

How to Reproduce

1. Add a stateless media player entity as configured entity which has no attributes and doesn't support the on_off or toggle feature
2. Edit the entity and click on toggle

Expected behavior

Stateless entities should not have a state shown in the web configurator. The toggle button should only be shown if the entity state can be toggled or turned on/off.

System version

2.2.1

What part of the system affected by the problem?

Web Configurator

Additional context

No response

[WillTriumph1]

This would be very helpful. If there would be a way to set devices as stateless and include this behavior it would also be significantly helpful.