style(transactions): 修改订单标题样式

apps/web/app/dashboard/transactions/[id]/page.tsx

@@ -174,7 +174,7 @@ export default function TransactionDetailPage({ params }: { params: Promise<{ id
       <div className="flex flex-wrap items-start justify-between gap-4">
         <div className="space-y-1.5">
           <div className="flex flex-wrap items-center gap-2">
-            <h1 className="font-mono text-2xl font-semibold text-foreground">订单 #{tx.id}</h1>
+            <h1 className="text-2xl font-semibold text-foreground">订单 #{tx.id}</h1>
             {isRejected ? (
               <Chip color="danger" size="sm" variant="soft">
                 已拒绝