Add service-worker script to static assets, update og:image to perman…

…ent link

frontend/nuxt.config.js

@@ -32,7 +32,7 @@ export default {
       },
       {
         property: 'og:image',
-        content: 'https://cubepb.com/_nuxt/img/cubepb-logo-2-b.2c3896b.png',
+        content: 'https://cubepb.com/cubepb-logo-2-b.png',
       },
     ],
     link: [{ rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' }],

frontend/static/service-worker.js

@@ -0,0 +1,18 @@
+self.addEventListener('activate', function (event) {
+  event.waitUntil(
+    caches.keys().then(function (cacheNames) {
+      return Promise.all(
+        cacheNames
+          .filter(function (_cacheName) {
+            // Return true if you want to remove this cache,
+            // but remember that caches are shared across
+            // the whole origin
+            return true
+          })
+          .map(function (cacheName) {
+            return caches.delete(cacheName)
+          })
+      )
+    })
+  )
+})