Enhance the age and gender detection system

### Issue Title
Enhance Age and Gender Detection System using OpenCV and Pre-trained Models

### Description
The current implementation of age and gender detection utilizes OpenCV with pre-trained models. To improve its functionality, performance, and user experience, several enhancements can be implemented:

1. **Performance Optimization**
2. **Accuracy Improvement**
3. **Error Handling and Robustness**
- Implement robust error handling to manage edge cases, such as no face detection or unexpected input.