[v6][Bug] Make user profile image circle instead of rounded-corner-square

[tabacitu]

In Tabler theme (both light and dark), when using the horizontal layout (but others should have the same), the top-right corner shows the user image and name. The user image is square with rounded corners right now… but I think circles are much better to represent user profile images. First, faces look good in circles because both faces and circles are round. Second, to me at least, if I see a circle image, I assume that’s a user profile pic, because that’s what social media has gotten me used to think. So having it as circle might be a small intuitive clue that the image is for the user.

[promatik]

I'll close this one since it's already a circle 👌 not sure when and who did it 😅

[tabacitu]