Redesign or Improve Mobiles Section (Fixes #21)

[athalyeathu]

Fixes #21

Describe the changes you've made

• Redesigned the mobiles section for a cleaner UI.
• Adjusted spacing, card shadows, and button alignment.
• Ensured both "Add to Cart" and "Buy Now" buttons have equal width.
• Improved responsiveness and overall layout for smaller screens.

Deployment link

[your deployed link here]

Describe if there is any unusual behaviour of your code

NA

Additional context

Enhanced look and feel of the mobile section while maintaining consistency with the site’s theme.

Checklist

• I have mentioned related issue number in PR description.
• I have added screenshots and related demo links of my changes.
• The title of my pull request is a short description of the requested changes.
• My code follows the code style of this project.

[QAZIMAAZARSHAD]

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