Fix navbar icons overlap on mobile view

[devdattatalele]

🐛 Bug Fix

Fixes #487 - Navbar icons overlap (search icon) on mobile view

Problem

On mobile devices, the search icon and GitHub icon in the navbar were overlapping, creating a cluttered UI and affecting usability.

Solution

Added a CSS media query to introduce proper spacing between right-aligned navbar items on mobile viewports (≤996px).

Changes

• Added gap: 0.75rem to .navbar__items--right class for mobile screens
• Uses responsive design principles to maintain desktop layout
• Non-invasive fix that works with existing Docusaurus navbar structure

Testing

• ✅ Mobile view spacing improved
• ✅ Desktop layout unchanged
• ✅ Responsive breakpoints working correctly

Closes #487