fix: conform to arrow-body-style in activate handler

Author: pranjalisr

src/sw.js

@@ -51,18 +51,20 @@ self.addEventListener("install", (event) => {
 });
 self.addEventListener("activate", (event) => {
   event.waitUntil(
-    caches.open(cacheName).then((cache) => {
-      return cache.keys().then((keys) => {
+    caches.open(cacheName).then((cache) =>
+      cache.keys().then((keys) => {
         for (const request of keys) {
           if (!manifestURLs.includes(request.url)) {
             cache.delete(request);
           }
         }
-      });
-    })
+      }),
+    ),
   );
 });
 
+
+
 registerRoute(
   ({ url }) => manifestURLs.includes(url.href),
   new NetworkFirst({