Chrome's own "Ask where to save each file" setting shows a native
picker before the extension can ever intercept the download, and no
extension API can read or suppress it -- surface this clearly in
install.sh, the README, and a popup shortcut instead of leaving it
buried as a footnote.
Also fixes silently missing "download complete" notifications: KGet
only fires its own finished-notification if a transfer was observed
in a non-finished state at least once, so small/fast downloads that
complete before that first observation never get one. The native
host now drives its own notification via notify-send, polling actual
transfer progress instead of relying on KGet's internal check, and
install.sh disables KGet's own notification to avoid duplicates.
andwati