Question 1 - If I edit Supply theme files, for example merging all the js and css files to increase page load speed. Will there be any issue, for example do Shopify update some Supply theme files?
Question 2 - Does the script_tag uses async or defer? Seems like not. I was planning to use async for all the like How to async or defer JS in Liquid? Apart from the link below, are there other resources? https://help.shopify.com/themes/liquid/filters/html-filters#script_tag