Grouped Notifications UI (#30440)

Co-authored-by: Eugen Rochko <eugen@zeonfederated.com>
Co-authored-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/mastodon/features/notifications_v2/components/notification_follow.tsx

@@ -0,0 +1,31 @@
+import { FormattedMessage } from 'react-intl';
+
+import PersonAddIcon from '@/material-icons/400-24px/person_add-fill.svg?react';
+import type { NotificationGroupFollow } from 'mastodon/models/notification_group';
+
+import type { LabelRenderer } from './notification_group_with_status';
+import { NotificationGroupWithStatus } from './notification_group_with_status';
+
+const labelRenderer: LabelRenderer = (values) => (
+  <FormattedMessage
+    id='notification.follow'
+    defaultMessage='{name} followed you'
+    values={values}
+  />
+);
+
+export const NotificationFollow: React.FC<{
+  notification: NotificationGroupFollow;
+  unread: boolean;
+}> = ({ notification, unread }) => (
+  <NotificationGroupWithStatus
+    type='follow'
+    icon={PersonAddIcon}
+    iconId='person-add'
+    accountIds={notification.sampleAccountIds}
+    timestamp={notification.latest_page_notification_at}
+    count={notification.notifications_count}
+    labelRenderer={labelRenderer}
+    unread={unread}
+  />
+);