fix(wizard): resolve build type errors and syntax in step-billing and step-software

shop/components/wizard/step-billing.tsx

@@ -117,6 +117,7 @@ export function StepBilling({
               </div>
             )}
           </div>
+        </div>
       </CardContent>
       <CardFooter className="flex justify-between border-t border-white/10 pt-6">
         <Button variant="ghost" className="text-white" onClick={prevStep}>

shop/components/wizard/step-software.tsx

@@ -31,7 +31,7 @@ interface StepSoftwareProps {
   activeCategoryId: string | null
 }
 
-function CategoryIcon({ icon, className }: { icon?: string | null; className?: string }) {
+export function CategoryIcon({ icon, className }: { icon?: string | null; className?: string }) {
   const LucideIcon = icon ? (Icons as any)[icon] : null
   if (!LucideIcon) return <Icons.HelpCircle className={className} />
   return <LucideIcon className={className} />