fix: add 6 missing apps to first-boot and fix penpot icon path

Added searxng, onlyoffice, filebrowser, nginx-proxy-manager, portainer,
and tailscale to first-boot-containers.sh so fresh ISO installs have all
marketplace apps ready. Fixed penpot icon path in Marketplace.vue to use
the correct app-icons directory.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

neode-ui/dev-dist/sw.js

@@ -82,7 +82,7 @@ define(['./workbox-21a80088'], (function (workbox) { 'use strict';
     "revision": "3ca0b8505b4bec776b69afdba2768812"
   }, {
     "url": "index.html",
-    "revision": "0.qqvn6d3mva8"
+    "revision": "0.nrq8o7pr84g"
   }], {});
   workbox.cleanupOutdatedCaches();
   workbox.registerRoute(new workbox.NavigationRoute(workbox.createHandlerBoundToURL("index.html"), {
@@ -116,7 +116,7 @@ define(['./workbox-21a80088'], (function (workbox) { 'use strict';
     })]
   }), 'GET');
   workbox.registerRoute(/\/assets\/.*/i, new workbox.CacheFirst({
-    "cacheName": "assets-cache",
+    "cacheName": "assets-cache-v2",
     plugins: [new workbox.ExpirationPlugin({
       maxEntries: 100,
       maxAgeSeconds: 2592000