Sortable energy individual devices

[karwosts]

Proposed change

Make the energy devices settings rows drag/drop sortable. It doesn't offer too much benefit, but it does affect the color of the devices, and maybe people want to organize their lists in a certain way for better visibility or something.

Often requested:
https://community.home-assistant.io/t/energy-management-reorganize-individual-devices/342280
https://community.home-assistant.io/t/wth-cant-i-reorder-devices-in-the-energy-dashboard/471502
https://community.home-assistant.io/t/wth-is-in-energy-dashboard-the-individual-devices-not-able-to-reorder/805051

Type of change

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

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io