Feature Request: Setting to change the version number

[ArztKlein]

An issue I have when converting the skyboxes is that the pack_format is always set to 9 in the mcmeta file, so I have to change it to 8 as my version is 1.18.

It'd be nice if the GUI had an option to change the game version to one that is compatible.

[supsm]

Hi, I'm not sure when I'll be able to get around to this, but if you want you can change PACK_VER in src/constants.h and compile yourself. Or you could fork the project and have the github actions compile for you.