Implement the logic for capturing and saving photos from the live preview stream.
- Add `save_photo` method to `MediaRepository` to handle file saving and database updates.
- `MainController` now tracks the selected color and the latest camera frame.
- The "Take Photo" button is enabled only when a color is selected.
- Pressing the button saves the current preview frame to the correct media folder and refreshes the thumbnail list.
- Fixes indentation issues in `main_controller.py` caused by previous faulty replacements.
bartool
02edb186bb