Remove "meter" from entity names of rainforest_eagle sensors

[NoRi2909]

Proposed change

(This PR applies the same fixes as #141487 for the rainforest_ravenintegration)

In rainforest_eagle the three sensors

• power_demand
• total_energy_delivered
• total_energy_received

currently add "meter" in their friendly names.

This does not provide any useful information and is rather irritating instead – it sounds like these are the power demands or consumption of the meter itself. But they are the measured values.

This commit removes "meter" from the names making them simpler and more precise, too.

For consistency the naming of meter_price is changed to energy_price.

In addition the sentence-casing of "Installation code" is fixed.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
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[home-assistant]

Hey there @gtdiehl, @jcalbert, @hastarin, mind taking a look at this pull request as it has been labeled with an integration (rainforest_eagle) you are listed as a code owner for? Thanks!

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