Fix/landingpage-product-section

[Srinu346]

What has changed?

The Products section on the landing page has been updated to ensure it is fully responsive across all screen sizes.

• Fixed layout issues where the three product cards (Unit Testing Agent, Integration Testing, and API Testing Agent) were overflowing or misaligned on smaller screens.
• Applied responsive design best practices (e.g., flex/grid adjustments, media queries) to ensure the cards stack correctly on smaller viewports.

Type of change

• [X] Bug fix (non-breaking change which fixes an issue).

How Has This Been Tested?

I have manually tested the changes by resizing the browser window across common breakpoints to simulate different devices.

• Mobile: Verified the cards stack vertically and are centered.

Checklist:

• [X] My code follows the style guidelines of this project.
• [X] I have performed a self-review of my own code.