Greasy Fork镜像

Added a fix for a fringe case where the script fails to get the file_id value

Made it not halt the entire script if it fails to add one of the (multiple) insta download buttons.

Added a failsafe so it catches if it fails to get the current game id from the page, if thats the case, the script stops and a message is outputted in the console

Added a login check to, only ads fast download button if the user is logged in.