added new tablet mode for creating shipping notes

public/assets/pwa/shipping-note-tablet-manifest.json

@@ -0,0 +1,22 @@
+{
+  "name": "Lieferscheine",
+  "short_name": "Lieferscheine",
+  "description": "XINON Lieferscheine App",
+  "start_url": ".",
+  "display": "standalone",
+  "background_color": "#f1f5f9",
+  "theme_color": "#0055FF",
+  "orientation": "portrait-primary",
+  "icons": [
+    {
+      "src": "/assets/images/xinon-sm-192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "/assets/images/xinon-sm-512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ]
+}

public/assets/pwa/shipping-note-tablet-sw.js

@@ -0,0 +1,32 @@
+const CACHE_NAME = 'lager-system-cache-v1';
+const urlsToCache = [
+    '.',
+    'https://cdn.jsdelivr.net/npm/vue@3.4.27/dist/vue.global.min.js',
+    'https://cdn.tailwindcss.com',
+    '/assets/images/xinon-full.png',
+    '/assets/icons/icon-192x192.png',
+    '/assets/icons/icon-512x512.png'
+];
+
+self.addEventListener('install', event => {
+    event.waitUntil(
+        caches.open(CACHE_NAME).then(cache => cache.addAll(urlsToCache))
+    );
+});
+
+self.addEventListener('fetch', event => {
+    event.respondWith(
+        caches.match(event.request).then(response => response || fetch(event.request))
+    );
+});
+
+self.addEventListener('activate', event => {
+    const cacheWhitelist = [CACHE_NAME];
+    event.waitUntil(
+        caches.keys().then(cacheNames => Promise.all(
+            cacheNames
+                .filter(cacheName => !cacheWhitelist.includes(cacheName))
+                .map(cacheName => caches.delete(cacheName))
+        ))
+    );
+});