refactor: 重命名 QRScanner 函数，统一调用方式

src/views/user/index.vue

@@ -10,7 +10,7 @@ import WalletCard from "./components/wallet-card.vue";
 
 const { vibrate } = useHaptics();
 const walletStore = useWalletStore();
-const { openScanner } = useQRScanner();
+const { open } = useQRScanner();
 
 async function handleRefresh(event: RefresherCustomEvent) {
   vibrate();
@@ -23,7 +23,7 @@ async function handleRefresh(event: RefresherCustomEvent) {
 // 处理扫描二维码
 async function handleScan() {
   vibrate();
-  const result = await openScanner({
+  const result = await open({
     title: "扫描二维码",
   });