fix camera button

[callebtc]

🐛 Fix: Camera Crash on Long Press

Broken by: Commit c663e8e (Jan 4, 2026) in PR #529 (QR Verification).

Technical Root Cause:
The QR Verification feature added <uses-permission android:name="android.permission.CAMERA" /> to AndroidManifest.xml.

• Before: The app did not declare the CAMERA permission. Android allows apps to use MediaStore.ACTION_IMAGE_CAPTURE to delegate photo taking to the system camera app without requiring any permissions.
• After: Once the CAMERA permission is declared in the manifest, Android enforces that the app must have this permission granted at runtime to use the camera, even when using an external intent like ACTION_IMAGE_CAPTURE. Failing to do so results in a SecurityException.

The Fix:
Updated ImagePickerButton.kt to explicitly check for Manifest.permission.CAMERA at runtime and request it if not granted, before launching the camera intent.

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Description

Checklist

• I have read the contribution guidelines: https://github.com/permissionlesstech/bitchat-android?tab=readme-ov-file#contributing
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• If it is a core feature, I have added automated tests