Discovered entities with a name that starts with the device name

[PimDoos]

We currently do not follow Home Assistant's entity naming best practices. This causes an error in HA 2023.08 and will break in HA 2024.2.

Some MQTT entities have an entity name that starts with the device name. This is not expected. To avoid a duplicate name the device name prefix is stripped of the entity name as a work-a-round. Please inform the maintainer of the software application that supplies the affected entities to fix this issue. List of affected entities: sensor.comfoair_exhaust_temperature sensor.comfoair_ewt_temperature sensor.comfoair_supply_fan_speed button.comfoair_reset_filter (continued)

[PimDoos]

The naming of MQTT entities changes to correspond with HA guidelines TLDR we need to set has_entity_name to True in device discovery and remove the device name prefix from the entity name.

I'll throw in a PR.