Improve display of time stamps in transaction view on mobile

Current desktop variant:

<img width="1401" height="1701" alt="Image" src="https://github.com/user-attachments/assets/31ec7bdf-933d-4ed0-8c33-3e30a56ffe40" />

Current mobile variant (note that there is no option to see the time stamp, just age is displayed):

<img width="1280" height="1357" alt="Image" src="https://github.com/user-attachments/assets/136a840b-9a04-409e-a190-ef739a9c80ae" />