Add exempted domains to RealMediaPlayback

[joshliebe]

Task/Issue URL: https://app.asana.com/1/137249556945/project/1200204095367872/task/1212710755908366?focus=true

Description

• Updates RealMediaPlayback to match against exempted domains and return false, which in turn sets mediaPlaybackRequiresUserGesture to false for that domain on the WebView.

Steps to test this PR

• Testing steps in task

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Note

Implements domain-based exemptions so media playback won’t require a user gesture on specified domains.

• Updates RealMediaPlayback to return false when URL matches any exemptedDomains via sameOrSubdomain
• Extends MediaPlaybackRepository to load and expose exemptedDomains from feature settings JSON (Moshi), refresh on onPrivacyConfigDownloaded, and log parse failures
• Adds tests for exempted domain behavior and repository settings parsing/updates

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[joshliebe]

• Add exempted domains to RealMediaPlayback #7455 👈 (View in Graphite)
• develop

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[cmonfortep]

LGTM

Tested and I can send and receive audio 👍