Feat: Modify the style of the home page in bright mode #3221 (#3832)

### What problem does this PR solve?

Feat: Modify the style of the home page in bright mode #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/components/ui/button.tsx

@@ -20,6 +20,7 @@ const buttonVariants = cva(
         link: 'text-primary underline-offset-4 hover:underline',
         tertiary:
           'bg-colors-text-core-standard text-foreground hover:bg-colors-text-core-standard/80',
+        icon: 'bg-colors-background-inverse-standard text-foreground hover:bg-colors-background-inverse-standard/80',
       },
       size: {
         default: 'h-10 px-4 py-2',