[BUG] "Scan QR Code" button does not open camera when configuring TOTP

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• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

Description

When trying to configure a TOTP (Time-based One-Time Password) for an entry, clicking the "Scan QR Code" button does nothing. The camera interface fails to launch, making it impossible to scan the setup QR code.

Steps to Reproduce

Open KeePass2Android and unlock a database.

Open or create an entry, and tap Edit (the pencil icon).

Tap Add new field or locate the TOTP configuration section.

Select Setup TOTP.

Tap on the "Scan QR Code" button.

Expected Behavior

The app should launch the camera interface to scan the QR code.

Actual Behavior

Clicking the button has no effect at all. No error message or permission prompt pops up, and the camera does not open.

Describe what you expected to happen:

No response

What version of Keepass2Android are you using?

1.16-pre

Which version of Android are you on?

16

Start by reproducing the issue on Android 16 through the TOTP setup flow for an entry, then inspect the "Scan QR Code" button action and camera launch behavior. Done means tapping the button opens the camera interface and allows the setup QR code to be scanned without the reported no-op.