Migrate to SensorEntityDescriptions for Trafikverket Train

[gjohansson-ST]

Proposed change

Break out from PR #71432

Prepare for moving attributes to sensors by:

• Modify unique id for base entity
• Implement SensorEntityDescription

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

Hey there @endor-force, mind taking a look at this pull request as it has been labeled with an integration (trafikverket_train) you are listed as a code owner for? Thanks!

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[joostlek]

Final nitpicks

[home-assistant]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

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[joostlek]

Sorry for the grammar nitpicks, but this looks better :)

[gjohansson-ST]

Sorry for the grammar nitpicks, but this looks better :)

It does but I had to revert it as it would be breaking then. I have a breaking change in the follow-up PR so I will correct the spelling in that one.

[joostlek]

👍🏻