To avoid copy/pasting of the same code in `BraveLocationBarQRDialogFragment` and `BraveSyncScreensPreference`, the common code related to qr code reading was moved to `QRCodeCameraManager` class.
To avoid copy/pasting of the same code in `BraveLocationBarQRDialogFragment` and `BraveSyncScreensPreference`, the common code related to qr code reading was moved to `QRCodeCameraManager` class.