Remove TestFlight gate from Focus name

[bgoncal]

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Summary

Reverts #5469, so the Focus name sensor and the Focus entry point in Settings are available in every build again.

Screenshots

No new UI, the existing Focus screen is only shown again in all builds.

Link to pull request in Documentation repository

Documentation: home-assistant/companion.home-assistant#

Any other notes

Draft, meant to be merged once the feature is ready to ship.

[github-actions]

⚠️ Unused L10n strings detected

Found 2 unused localization strings in the codebase.

Click to see details

Parsing Strings.swift...
Found 2552 L10n strings

Reading all Swift source code...
Read 9267258 characters of Swift code

Checking for unused strings...
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================================================================================
UNUSED STRINGS REPORT
================================================================================

Found 2 unused strings:


WIDGETS:
  - L10n.Widgets.Details.descriptionWithWarning
    Key: widgets.details.description_with_warning
    Line: 8745
  - L10n.Widgets.Gauge.descriptionWithWarning
    Key: widgets.gauge.description_with_warning
    Line: 8817

================================================================================
Total unused: 2
================================================================================

================================================================================
Copy-paste these keys into the "Lokalise: Delete Keys" workflow (keys input):
================================================================================
widgets.details.description_with_warning,widgets.gauge.description_with_warning

To remove them, run the
Lokalise: Delete Keys
workflow — it deletes the keys from Lokalise and opens a PR removing them from
Localizable.strings and regenerating Strings.swift. Copy-paste these keys into the keys input:

widgets.details.description_with_warning,widgets.gauge.description_with_warning