Stunner - KIE playground examples are not displaying correctly, also the processes' SVG files must be replaced

About the KIE playground examples integration into Stunner, there are still a few missing tasks:

• it's using the same layout as the old process, but that doesn't look great in stunner, in stunner it actually by default uses larger tasks (so the icons + text fit), maybe update the process to be larger by default?
• missing to update the svg that is included, currently the old designer generated svg is still there