feat:#5 added own service worker script for precache api during install

frontend/vite.config.ts

@@ -28,7 +28,13 @@ export default defineConfig({
       mode: "development",
       base: "/",
       injectRegister: "auto",
-      includeAssets: ["favicon.ico", "apple-touch-icon.png", "mask-icon.svg"],
+      includeAssets: [
+        "favicon.ico",
+        "apple-touch-icon.png",
+        "mask-icon.svg",
+        "robots.txt",
+        "sitemap.xml"
+      ],
       manifest: {
         name: "HTWKalender",
         short_name: "HTWKalender",
@@ -81,47 +87,6 @@ export default defineConfig({
         ],
       },
       registerType: "autoUpdate",
-      workbox: {
-        globPatterns: ["**/*.{js,css,html,ico,png,svg,json,vue,txt,woff2}"],
-        cleanupOutdatedCaches: true,
-        runtimeCaching: [
-          {
-            urlPattern: ({ url }) => url.pathname.startsWith("/api/feed"),
-            method: "GET",
-            handler: "NetworkFirst",
-            options: {
-              cacheName: "calendar-feed-cache",
-              expiration: {
-                maxAgeSeconds: 12 * 60 * 60, // 12 hours
-              },
-            },
-          },
-          {
-            // Add the runtime caching strategy for /api/modules
-            urlPattern: ({url}) => url.pathname.startsWith('/api/modules'),
-            method: 'GET',
-            handler: 'NetworkFirst',
-            options: {
-              cacheName: 'modules-cache',
-              expiration: {
-                maxAgeSeconds: 24 * 60 * 60, // 1 day
-              },
-            },
-          },
-          {
-            urlPattern: /^https?.*/,
-            handler: "NetworkFirst",
-            options: {
-              cacheName: "https-calls",
-              expiration: {
-                maxEntries: 150,
-                maxAgeSeconds: 30 * 12 * 60 * 60, // 1 month
-              },
-              networkTimeoutSeconds: 10, // fall back to cache if api does not response within 10 seconds
-            },
-          },
-        ],
-      },
       devOptions: {
         enabled: true,
         /* when using generateSW the PWA plugin will switch to classic */
@@ -129,6 +94,7 @@ export default defineConfig({
         navigateFallback: "index.html",
         suppressWarnings: true,
       },
+      strategies: "injectManifest",
     }),
   ],
   resolve: {