You have 2 options to customize panel.min.js / frontend.min.js files.

1) You can unminify it via one of the free online websites e.g. https://unminify.com/

2) You can use original Vue.js files. Here is more information about framework we use for dynamic parts of the website - https://vuejs.org/

Please download full package from your https://themeforest.net/downloads

Please unzip and you will find all vue files in the:

myhome_package/additional/sccs-vue-gulp-files-XXXX.zip e.g.

In 3 folders: