Camera player UI improvements

[bgoncal]

Summary

Camera player UI improvements, independent of two-way audio:

• Extracts the WebRTC player controls into a dedicated WebRTCVideoPlayerControlsView.
• Adds WebRTCVideoPlayerViewControllerWrapper (a UIViewControllerRepresentable that drives the player view controller from SwiftUI via an isVideoPlaying binding).
• Reworks the WebRTCVideoPlayerView and CameraPlayerView layout.

The talkback control is present but stays hidden (gated on isTalkbackSupported, which is false on main), so this PR is purely UI and adds no two-way-audio behavior.

Base for the stacked two-way-audio PR #4994.

Screenshots

Link to pull request in Documentation repository

Documentation: home-assistant/companion.home-assistant#

Any other notes

[github-actions]

⚠️ Unused L10n strings detected

Found 5 unused localization strings in the codebase.

Click to see details

Parsing Strings.swift...
Found 2158 L10n strings

Reading all Swift source code...
Read 7383184 characters of Swift code

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================================================================================
UNUSED STRINGS REPORT
================================================================================

Found 5 unused strings:


WATCH:
  - L10n.Watch.Complications.Builder.previewFooter
    Key: watch.complications.builder.preview_footer
    Line: 5835
  - L10n.Watch.Complications.Builder.sourceCustom
    Key: watch.complications.builder.source_custom
    Line: 5865
  - L10n.Watch.Complications.Builder.templateColor
    Key: watch.complications.builder.template_color
    Line: 5877
  - L10n.Watch.Complications.Builder.textTemplate
    Key: watch.complications.builder.text_template
    Line: 5895

ROOT:
  - L10n.debugSectionLabel
    Key: debug_section_label
    Line: 26

================================================================================
Total unused: 5
================================================================================

================================================================================
Copy-paste these keys into the "Lokalise: Delete Keys" workflow (keys input):
================================================================================
debug_section_label,watch.complications.builder.preview_footer,watch.complications.builder.source_custom,watch.complications.builder.template_color,watch.complications.builder.text_template

To remove them, run the
Lokalise: Delete Keys
workflow — it deletes the keys from Lokalise and opens a PR removing them from
Localizable.strings and regenerating Strings.swift. Copy-paste these keys into the keys input:

debug_section_label,watch.complications.builder.preview_footer,watch.complications.builder.source_custom,watch.complications.builder.template_color,watch.complications.builder.text_template

[Copilot]

Pull request overview

This PR refactors the in-app WebRTC camera player UI by extracting player controls into a reusable SwiftUI view, moving the UIViewControllerRepresentable wrapper into its own file, and adjusting the camera player navigation/title layout to better fit the updated controls design (as groundwork for the stacked two-way-audio PR).

Changes:

• Extract WebRTC toolbar controls (mute + talkback UI) into WebRTCVideoPlayerControlsView.
• Add a standalone WebRTCVideoPlayerViewControllerWrapper to host WebRTCVideoPlayerViewController from SwiftUI.
• Rework WebRTCVideoPlayerView and CameraPlayerView layout/toolbar placements and add SwiftUI previews.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
Sources/App/Cameras/CameraPlayer/WebRTC/WebRTCVideoPlayerViewControllerWrapper.swift	Introduces a standalone UIViewControllerRepresentable wrapper for the WebRTC player VC.
Sources/App/Cameras/CameraPlayer/WebRTC/WebRTCVideoPlayerView.swift	Uses the extracted controls view and removes the previously inlined wrapper; adds a #Preview.
Sources/App/Cameras/CameraPlayer/WebRTC/WebRTCVideoPlayerControlsView.swift	New extracted SwiftUI control surface (talkback + mute) used by the WebRTC player view.
Sources/App/Cameras/CameraPlayer/CameraPlayerView.swift	Adjusts toolbar placements and constrains the title/subtitle label width for the updated UI.