Add photo confirmation

Feature Request: Add a Photo Confirmation Prompt Between Captures

It would be great if Lumabooth could add an option to display a photo confirmation prompt before moving on to the next photo or the next session.

The current capture timer doesn't accommodate every guest. Some guests are ready immediately, while others need a bit more time to prepare. Because everyone has a different pace, relying solely on a countdown timer can make some guests feel rushed, which can take away from the fun and relaxed experience a photo booth is meant to provide.

An optional confirmation prompt (such as a "Ready" or "Continue" button) would let guests proceed at their own pace while keeping the session flowing naturally. This would improve the overall user