Question $4$: Data Validation and Error Handling $(15$ marks$)$

$1.$ Implement client$-$side and server$-$side validation for the product creation and editing forms.

$2.$ Handle errors gracefully throughout the application.

$3.$ Provide meaningful error messages for different scenarios.

Question $5$: Additional Feature $(10$ marks$)$

Implement an additional feature of your choice. This could be:

$$ Pagination for the product list.

$$ Search functionality.

$$ Adding images to products.

$$ Any other relevant feature