添加seo功能

src/app/manifest.ts

@@ -0,0 +1,21 @@
+import {MetadataRoute} from 'next'
+import {siteConfig} from '@/config/site'
+
+export default function manifest(): MetadataRoute.Manifest {
+  return {
+    name: siteConfig.name,
+    short_name: siteConfig.shortName,
+    description: siteConfig.description,
+    start_url: '/',
+    display: 'standalone',
+    background_color: '#ffffff',
+    theme_color: '#3b82f6',
+    icons: [
+      {
+        src: '/favicon.ico',
+        sizes: '48x48',
+        type: 'image/x-icon',
+      },
+    ],
+  }
+}