Add RFlink UI Icons

[guanaco0403]

Proposed change

Add icons for the RFlink UI integration ive made:
https://github.com/guanaco0403/Home-Assistant-Rflink-UI

Type of change

• Add a new logo or icon for a new core integration
• Add a missing icon or logo for an existing core integration
• Replace an existing icon or logo with a higher quality version
• Replace an existing icon or logo after a branding change
• Removing an icon or logo

Additional information

• This PR fixes or closes issue: fixes #
• Link to code base pull request:
• Link to documentation pull request:
• Link to integration documentation on our website: https://github.com/guanaco0403/Home-Assistant-Rflink-UI

Checklist

• The added/replaced image(s) are PNG
• Icon image size is 256x256px (icon.png)
• hDPI icon image size is 512x512px for (icon@2x.png)
• Logo image size has min 128px, but max 256px, on the shortest side (logo.png)
• hDPI logo image size has min 256px, but max 512px, on the shortest side (logo@2x.png)

[github-actions]

Hi there 👋🏻

Thank you for your PR! We really appreciate the contribution.

However, we'll be closing it, as we no longer accept brand icons for custom integrations in this repository. Starting with Home Assistant 2026.3.0, custom integrations can provide their own brand icons directly, so there's no longer a need to add them here.

You can find more details in the announcement:
https://developers.home-assistant.io/blog/2026/02/24/brands-proxy-api