fix(web): 补全缺失的 web shims 并修复渲染崩溃问题

- 新增 sentry-react-native、react-native-video、react-native-static-server、expo-network、expo-intent-launcher、expo-clipboard、expo-file-system 的 web shim
- 重写 react-native-pager-view shim，通过 useImperativeHandle 暴露 setPage 方法
- 修复 sentry-react-native shim 缺少 ErrorBoundary 导致的渲染崩溃
- 在 _layout.tsx 中加载 Ionicons 字体，修复 web 端字体 404
- 更新 metro.config.js 中 sentry shim 路径为 .tsx

app/_layout.tsx

@@ -9,6 +9,8 @@ import { useSettingsStore } from '../store/settingsStore';
 import { MiniPlayer } from '../components/MiniPlayer';
 import * as Sentry from '@sentry/react-native';
 import { ErrorBoundary } from '@sentry/react-native';
+import { useFonts } from 'expo-font';
+import { Ionicons } from '@expo/vector-icons';
 
 Sentry.init({
   dsn: process.env.EXPO_PUBLIC_SENTRY_DSN ?? '',
@@ -22,13 +24,18 @@ function RootLayout() {
   const loadDownloads = useDownloadStore(s => s.loadFromStorage);
   const restoreSettings = useSettingsStore(s => s.restore);
 
+  const [fontsLoaded] = useFonts({
+    ...Ionicons.font,
+  });
+
   useEffect(() => {
     restore();
     loadDownloads();
     restoreSettings();
-
   }, []);
 
+  if (!fontsLoaded) return null;
+
   return (
     <SafeAreaProvider>
       <StatusBar style="dark" />