Partnrship addition to OpenChat Frame Ancestors

[megalinker]

Hi Openchat Team, Jesús from the Partnrship team here.

Partnrship is an upcoming atomic matchmaking and management tool for projects and workers, mainly focused on the ICP ecosystem. This platform will include a kanban board-styled webapp with tasks for workers to complete. Each task will have an OpenChat dedicated channel, and we'd like to integrate your xframe to embed these channels directly within our platform.

This pull request adds our frontend canister to the frame ancestors to allow said functionality.

Best Regards.

[github-actions]

canbench 🏋 (dir: .)

./canbench_results.yml is up to date ✅

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Benchmark: push_simple_text_messages
  total:
    instructions: 303.35 M (1.03%) (change within noise threshold)
    heap_increase: 12 pages (no change)
    stable_memory_increase: 0 pages (no change)

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Benchmark: add_reactions
  total:
    instructions: 901.71 M (-0.73%) (change within noise threshold)
    heap_increase: 3 pages (no change)
    stable_memory_increase: 0 pages (no change)

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