OK, so there are several things I can see that will need to be addressed. Did you get any instructions from the manufacturer of this hardware? In particular, the recommended firmware settings for this hardware?
Here is a list of each of the grbl settings and how they are used and defined. https://github.com/gnea/grbl/wiki/Grbl-v1.1-Configuration
You will need to set $32=1 (laser mode ON). You will want to set up a macro in LightBurn to be able to flip between Laser Mode and CNC, but we can address that later.
$130, $131 and $132 are your settings for the dimensions of your physical work area and are currently set to X = 500mm, Y = 500mm and Z = 200mm of Max Travel. This needs to change to what you actually have as well.
Once you have that, repost the $$ results again for review.