Update quality scale for UniFi Access integration to platinum

[RaHehl]

Proposed change

Upgrade unifi_access quality scale to platinum

Type of change

• Spelling, grammar or other readability improvements (current branch).
• Adjusted missing or incorrect information in the current documentation (current branch).
• Added documentation for a new integration I'm adding to Home Assistant (next branch).
  • I've opened up a PR to add logos and icons in Brands repository.
• Added documentation for a new feature I'm adding to Home Assistant (next branch).
• Removed stale or deprecated documentation.

Additional information

• Link to parent pull request in the codebase: Upgrade unifi_access quality scale to platinum core#168204
• Link to parent pull request in the Brands repository:
• This PR fixes or closes issue: fixes #

Checklist

• This PR uses the correct branch, based on one of the following:
  • I made a change to the existing documentation and used the current branch.
  • I made a change that is related to an upcoming version of Home Assistant and used the next branch.
• The documentation follows the Home Assistant documentation standards.

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[Copilot]

Pull request overview

This PR updates the UniFi Access integration documentation metadata to reflect that the integration has reached the platinum tier on the Home Assistant integration quality scale.

Changes:

• Update ha_quality_scale for the UniFi Access integration from silver to platinum.

[c0ffeeca7]

Closing this PR, as it is not needed. The quality scale value is updated automagically once the value has been changed and merged in core.

The note about this is a bit hidden in the docs: under ha_quality_scale

https://developers.home-assistant.io/docs/documenting/create-page#about-the-integration-page-header-format