a helper to efficiently download crawl data from GSC
instead of downloading 42 separate CSV files (by response, file type, purpose, Googlebot type and summary) this allows you to download everything with one click (and you can decide wether you want to only use the extension or if you want to backup the original CSVs as well)
Update v1.5: added backup/restore under options.html
Update v1.1: some UX/UI bugfixes