feat(messaging): wire up Hogflow API to campaigns UX

[havenbarnes]

[!IMPORTANT] 👉 Stay up-to-date with PostHog coding conventions for a smoother review.

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[github-actions[bot]]

Size Change: +504 B (+0.02%)

Total Size: 2.57 MB

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Filename	Size	Change
frontend/dist/toolbar.js	2.57 MB	+504 B (+0.02%)

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