Very long Entity names with Device Name prefixes

[GuyKh]

System Health details

N/A

Checklist

• I have enabled debug logging for my installation.
• I have filled out the issue template to the best of my ability.
• This issue only contains 1 issue (if you have multiple issues, open one issue for each issue).
• This issue is not a duplicate issue of any previous issues..

Describe the issue

As described here - when an entity "belongs" to a Device - it'll affect the entity name (friendly_name = f"{device.name} {entity.name}")
https://developers.home-assistant.io/docs/core/entity/#has_entity_name-true-mandatory-for-new-integrations

So now, you'll see things like: IEC Contract 12345 - Meter 23456 Last IEC bill date instead of Last IEC bill date

Reproduction steps

Add Devices.

Debug logs

N/A

Diagnostics dump

No response

[GuyKh]

Relates to changes done as part of this:
#88