fix: add missing assets to sw to work offline (#139)

vite.config.ts

@@ -71,6 +71,7 @@ export default defineConfig({
     // https://github.com/antfu/vite-plugin-pwa
     VitePWA({
       registerType: 'autoUpdate',
+      includeAssets: ['favicon.svg', 'robots.txt', 'safari-pinned-tab.svg'],
       manifest: {
         name: 'Vitesse',
         short_name: 'Vitesse',