Fix Fujitsu fglair authentication error and other issues

[crevetor]

Breaking change

Proposed change

This fixes a few issues that have been reported. Changes in the device package :

• Return false instead of raising an exception when reading an unsupported property
• Raise an error if the device is offline
• Add app secrets for china and europe
• Fix refresh

Type of change

• [ ] Dependency upgrade
• [x] 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 #124947 fixes #125274 and fixes #124971
• This PR is related to issue:
• Link to documentation pull request:

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:

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

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.

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[rewardone]

If you continue with c068675, let me know, or you can open a PR to remove the relevant code.

Your PRs were merged and released as v1.4.0 tonight.

[frenck]

Removed this PR from the patch milestone, as I could not cleanly merge it into the current stable branches.