App icons aren't centered at larger sizes

[danirabbit]

What Happened?

App icons aren't centered at >= 48px. This was done intentionally once upon a time because we had this idea of app icons sitting on a shelf, but this causes more problems with alignment now and we no longer have a shelf of a dock

Steps to Reproduce

Look at icons 48px and above and see they aren't centered vertically on the canvas

Expected Behavior

We should move app icons so that they are vertically centered

OS Version

8.x (Circe)

Session Type

Classic Session (X11, This is the default)

Software Version

Latest release (I have run all updates)

Log Output

Hardware Info

No response