Sorry for the late reply, I missed your message originally. I've updated the download folder for the game, and it contains both a regular Mac version, and one I (hopefully) updated with the nwjs file you indicated. The updated one is labeled "CiC_0.58.3_MacARM". Please let me know if that works, or if I did something wrong there, thanks.
Here's the download folder link: https://mega.nz/folder/cbgSxbCZ#wDz_LWeAMea73kqwL0l1-g