Optimized Code structure and readibility

[ruhi47]

Related Issues or bug

• Code optimisation and readability

Fixes: # 1778[issue number that will be closed through this PR]

Proposed Changes

• Optimized the face detection loop for improved performance.
• Refined the preprocessing steps to enhance the accuracy of gender and age detection.
• Improved code readability and added error handling for video capture and invalid face regions.

Additional Info

• Added checks to ensure the face region is valid before performing predictions.

Screenshots

Original	Updated
original screenshot	**updated screenshot **