Kart Racing Pro release9 available.

Changelog:
fix: karts in the wrong pit during connection
fix: pit position when joining as a spectator
fix: karts pit state
fix: multiple race info chat messages
fix: server restart
fix: challenge mode
fix: connection bandwidth usage optimization
fix: mods folder
fix: crash when an Arduino Micro is connected as joystick
fix: B karts clutch paddle animation
fix: trees, wire fences and 3D grass rendering
new: detailed data mismatch information
new: VR in replay