Reapply "Add missing admin action files and navigation links"

This reverts commit 4d515bc400.

public/sw.js

@@ -45,7 +45,10 @@ self.addEventListener("fetch", (event) => {
       fetch(req)
         .then((res) => {
           const copy = res.clone();
-          caches.open(CACHE).then((c) => c.put(req, copy)).catch(() => {});
+          caches
+            .open(CACHE)
+            .then((c) => c.put(req, copy))
+            .catch(() => {});
           return res;
         })
         .catch(() => caches.match(req).then((hit) => hit || caches.match("/"))),