Have the guest session be a card like other sessions

### Problem

The guest session button is a small white rectangle in the middle, against a blurred background

At first i did not see it - I thought the option was bugged. I expected it to have a profile picture and card, like the other sessions

If i have someone who want to use the computer, i will either have to specify to look for the small rectangle that says open guest session (against a blurred background), or let them find it - They may not always have great sight or know where to look

### Proposal

Guest Session to appear at the end of all other sessions "cards", with a default profile image and default background, when activated in the settings

The removal of the tiny rectangle "open a guest session"

### Prior Art (Optional)

_No response_