Fix ContactListPage desktop layout issue

- Fix width constraint on contact card container for proper desktop layout
- Contact details now display properly beside avatar instead of being pushed to right edge

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/ContactListPage.tsx

@@ -407,7 +407,8 @@ const ContactListPage = () => {
                           display: 'flex', 
                           alignItems: 'center', 
                           gap: 2,
-                          width: '100%'
+                          width: { xs: '100%', md: 'auto' },
+                          flexShrink: 0
                         }}>
                           <Box
                             sx={{