In the desktop the icons can reach 96 and 128 pixel. With the increase of resolution those are good dimensions.
The max size of icons in LaunchBox was 64, so new sizes were added.
Fixes #13835
Change-Id: Id4db66f52b265aa4f94742c83f7d65ed136ba9c2
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2172
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>