🎨 Palette: Dynamic Accessibility and Interaction Polish

[manupawickramasinghe]

💡 What:

• Added dynamic contentDescription to bitrate ('kB/sec') and frame time ('ms') metrics so screen readers announce them with full context ('Bitrate: 500 kilobytes per second', 'Frame time: 33 milliseconds').
• Added contentDescription ('Camera viewfinder') to the main camera preview surface.
• Added haptic feedback when copying the IP address.
• Fixed build errors caused by duplicate XML attributes (android:importantForAccessibility and android:labelFor).

🎯 Why:

• Users relying on screen readers previously heard raw numbers like '33' or '500' without context.
• The camera preview was a silent black box to accessibility services.
• Copying the IP address lacked tactile confirmation.
• The build was failing due to malformed XML.

📸 Before/After:

• Before: TalkBack reads '33ms'. After: TalkBack reads 'Frame time: 33 milliseconds'.
• Before: IP copy is silent. After: IP copy triggers haptic feedback.

♿ Accessibility:

• Rich context for dynamic metrics.
• Labeled camera preview.
• Haptic feedback for interaction.

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PR created automatically by Jules for task 4800315976078869731 started by @manupawickramasinghe

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