Fix duplicate notifications REQ caused by cursor in query key

src/hooks/useHasUnreadNotifications.ts

@@ -24,7 +24,7 @@ export function useHasUnreadNotifications(): boolean {
     : null;
 
   const { data: hasUnread = false } = useQuery<boolean>({
-    queryKey: ['notifications-unread', user?.pubkey ?? '', notificationsCursor],
+    queryKey: ['notifications-unread', user?.pubkey ?? ''],
     queryFn: async ({ signal }) => {
       if (!user || notificationsCursor === null) return false;
 

src/hooks/useNotifications.ts

@@ -215,6 +215,7 @@ export function useNotifications(): NotificationData {
       await updateSettings.mutateAsync({
         notificationsCursor: newestTimestamp,
       });
+      queryClient.invalidateQueries({ queryKey: ['notifications-unread', user.pubkey] });
     } catch (error) {
       console.error('Failed to mark notifications as read:', error);
       // Roll back optimistic cursor on failure