fix: Update registerServiceWorker.js (delete all cache on when new version is released)

Empty the cache when a release is changed.
When the release data is refreshed, the page is updated without a forced refresh.

src/registerServiceWorker.js

@@ -21,6 +21,9 @@ if (process.env.NODE_ENV === 'production') {
     },
     updated() {
       console.log('New content is available; please refresh.')
+      caches.keys().then(function (names) {
+        for (const name of names) caches.delete(name)
+      })
     },
     offline() {
       console.log(