Add Tesla Fleet grid status

[JEMcats]

Proposed change

This pull request adds 2 changes:

• Grid Connected / Disconnected Status ('Unknown'/'Connected'/'Disconnected'/'Disconnected intentionally' )
• Storm Watch Active / Standby ('True'/'False')

Type of change

• [ ] Dependency upgrade
• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] New integration (thank you!)
• [x] 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 is related to PR: #126003

Checklist

• [x] The code change is tested and works locally.
• [x] Local tests pass. Your PR cannot be merged unless tests pass
• [x] There is no commented out code in this PR.
• [x] I have followed the development checklist
• [x] I have followed the perfect PR recommendations
• [x] The code has been formatted using Ruff (ruff format homeassistant tests)
• [x] Tests have been added to verify that the new code works.

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

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

Updated Docs

If the code communicates with devices, web services, or third-party tools:

• [x] The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• [x] New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• [x] For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

To help with the load of incoming pull requests:

• [ ] I have reviewed two other open pull requests in this repository.

[home-assistant[bot]]

Hey there @bre77, mind taking a look at this pull request as it has been labeled with an integration (tesla_fleet) you are listed as a code owner for? Thanks!

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[home-assistant[bot]]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks :+1:

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[Bre77]

@JEMcats run pytest ./tests/components/tesla_fleet --snapshot-update in your dev environment to update the test snapshots and commit the binary_sensory.ambr file it will update.

[Bre77]

You can use this as your documentation: https://github.com/home-assistant/home-assistant.io/pull/34911

[Bre77]

@JEMcats sorry I made a bad assumption that your translations would be up to date. Delete the *.ambr files you generated, run script/setup then re-run the pytest command, this should generate some entries in sensors.ambr for the grid status entity only.

[JEMcats]

I completed those steps and there is nothing new to commit.

[JEMcats]

I compiled the translations and updated the *.ambr files. d8f61c0