feat: update cloudflare integration docs

[cypherbits]

Proposed change

Change the cloudflare documentation to match the open PR changes.

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: Cloudflare DDNS: add support for multiple zones and subdomains, sensors and CF proxy switch core#164096
• 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 pull request updates the Cloudflare integration documentation to reflect new features being added in the parent PR (home-assistant/core#164096). The changes enhance the documentation to describe new sensor and switch entities being added to the integration.

Changes:

• Added a new codeowner @cypherbits
• Changed integration type from service to integration
• Added "Supported functionality" section documenting sensors, switches, and actions
• Removed the "Zones" limitation (integration can now manage multiple zones)
• Improved clarity of the reconfiguration limitation description