FCE-2487: Fix media stream usage docs

[MiloszFilimowski]

Description

• Mediastream usage was not reflected in docs and missing in RTCPIPView

[linear]

FCE-2487 Override types to include MediaStream from react-native-webrtc

[Copilot]

Pull request overview

This PR updates the mobile client’s WebRTC view overrides to expose media-stream-based usage in both RTCView and RTCPIPView, and aligns the package index exports with these wrappers.

Changes:

• Refactors RTCView override to accept a mediaStream prop, derive streamURL via a shared convertMediaStreamToURL helper, and base its props type on ComponentPropsWithRef<typeof OriginalRTCView> minus streamURL.
• Introduces an analogous RTCPIPView wrapper that also derives streamURL from a mediaStream and re-exports its component and props from the package index.
• Updates packages/mobile-client/src/index.ts to re-export the new RTCPIPView and its props, and to rely on the overridden versions instead of the originals for public API.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
packages/mobile-client/src/overrides/RTCView.tsx	Adds a shared convertMediaStreamToURL helper, updates RTCView to use mediaStream, and introduces an RTCPIPView wrapper that mirrors this behavior.
packages/mobile-client/src/index.ts	Re-exports the overridden RTCView/RTCPIPView components and their props, and stops re-exporting the original RTCPIPView directly.

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