fix(homepage): increase skill card abacus container width

Remove overflow:hidden and increase the abacus container width from
75px to responsive widths (95px mobile, 110px desktop) to properly
accommodate the abacus visualizations without clipping.

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

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

apps/web/src/app/page.tsx

@@ -256,7 +256,6 @@ export default function HomePage() {
                                 : '0 4px 12px rgba(0, 0, 0, 0.3)',
                               transition: 'all 0.2s',
                               cursor: 'pointer',
-                              overflow: 'hidden',
                               _hover: {
                                 bg: isSelected
                                   ? 'linear-gradient(135deg, rgba(250, 204, 21, 0.2), rgba(250, 204, 21, 0.12))'
@@ -275,7 +274,7 @@ export default function HomePage() {
                               <div
                                 className={css({
                                   fontSize: '3xl',
-                                  width: '75px',
+                                  width: { base: '95px', lg: '110px' },
                                   minHeight: { base: '115px', lg: '140px' },
                                   display: 'flex',
                                   alignItems: 'center',