Fix: Feed Detail Page direct navigation "Back" button bug

If you go on the feed detail page directly (pasting the url) and you click the back button, it should go to the 'feeds' page. Right now it exits the app

<img width="871" height="535" alt="Image" src="https://github.com/user-attachments/assets/54d88129-f535-489f-a06c-10339860909b" />