Fix notification permissions being requested immediately after login (#26472)

app/javascript/mastodon/actions/notifications.js

@@ -18,6 +18,7 @@ import {
   importFetchedStatuses,
 } from './importer';
 import { submitMarkers } from './markers';
+import { register as registerPushNotifications } from './push_notifications';
 import { saveSettings } from './settings';
 
 export const NOTIFICATIONS_UPDATE      = 'NOTIFICATIONS_UPDATE';
@@ -293,6 +294,10 @@ export function requestBrowserPermission(callback = noOp) {
     requestNotificationPermission((permission) => {
       dispatch(setBrowserPermission(permission));
       callback(permission);
+
+      if (permission === 'granted') {
+        dispatch(registerPushNotifications());
+      }
     });
   };
 }

app/javascript/mastodon/main.jsx

@@ -33,7 +33,7 @@ function main() {
         console.error(err);
       }
 
-      if (registration) {
+      if (registration && 'Notification' in window && Notification.permission === 'granted') {
         const registerPushNotifications = await import('mastodon/actions/push_notifications');
 
         store.dispatch(registerPushNotifications.register());