refactor: remove unused imports from Card, Surface, and Typography components

Author: JPugetGil

src/design-system/Card.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { colors, fontSizes, radii, spacing, shadows } from '../design-system/tokens';
+import { colors, radii, spacing, shadows } from '../design-system/tokens';
 
 interface CardProps {
   children: React.ReactNode;

src/design-system/Surface.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { colors, spacing, radii, fontSizes } from '../design-system/tokens';
+import { colors, spacing, radii } from '../design-system/tokens';
 
 interface SurfaceProps {
   children: React.ReactNode;

src/design-system/Typography.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { colors, fontSizes, radii, spacing } from '../design-system/tokens';
+import { colors, fontSizes } from '../design-system/tokens';
 
 interface TypographyProps {
   variant?: 'h1' | 'h2' | 'h3' | 'body' | 'caption';