Alert dialog for odd edge-case

src/App.vue

@@ -460,7 +460,18 @@ export default class App extends Vue {
           resolve();
         })
         .catch((error) => {
-          console.error("Push subscription failed:", error, options);
+          console.error(
+            "Subscription or server communication failed:",
+            error,
+            options,
+          );
+
+          // Inform the user about the issue
+          alert(
+            "We encountered an issue setting up push notifications. " +
+              "If you wish to revoke notification permissions, please do so in your browser settings.",
+          );
+
           reject(error);
         });
     });