Improved: added sticky scrolling on the counting page(#353)

[R-Sourabh]

Related Issues

353

Short Description and Why It's Useful

• Added sticky scrolling on the counting page.
• Scrolling is working on the items list and the searchbar/ segments are fixed in position.
• The product details section is also not scrolling with list scroll.

Screenshots of Visual Changes before/after (If There Are Any)

Contribution and Currently Important Rules Acceptance

• [x] I have read and followed contribution rules