feat(ui): Add sticky social media share component below blog banner

[Srinu346]

Related Tickets & Documents

Fixes: #3298

Description

This PR updates the placement and behaviour of the social media share component in blog pages.

Current Behaviour

• The share component appears at the top of the blog, next to the reviewer name.
• It is not sticky and does not follow the scroll.

Expected Output (Implemented)

• Social share navbar is moved to the bottom of the blog banner.
• The component now has a sticky scroll effect, similar to:
  • the advertisement banner
  • the table of contents
• Ensures consistent alignment across screens and improves UX.

Changes

• Relocated social share component from blog header area to banner bottom.
• Added sticky positioning with scroll-follow behaviour.
• Updated UI styles for spacing, responsiveness, and placement.
• Refactored existing component structure for small reusability improvements.

Type of Change

• Chore
• Bug fix
• [] New feature
• Breaking Change
• UI improvement
• Performance improvement
• Documentation update
• CI
• Revert

Testing

Manual Testing Performed

• Verified sticky behaviour across long-scroll blogs.
• Verified correct initial placement below blog banner.
• Tested on desktop, tablet, and mobile breakpoints.
• Ensured no layout overlap with ad banner or TOC.

Additional Test Notes

• Component behaviour verified on Chrome, Edge, Firefox.

Demo

AFTER

Environment and Dependencies

• New Dependencies:
  • None
• Configuration Changes:
  • No environment or config changes required.

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added corresponding tests
• I have run the build command to ensure there are no build errors
• My changes have been tested across relevant browsers/devices
• For UI changes, I've included visual evidence of my changes

[Srinu346]

@Achanandhi-M sir, @amaan-bhati sir please have a look

[Srinu346]

@amaan-bhati sir , please review this if possible .