Fix npm scripts.
Fix npm scripts.

It is a shell/batch script on Windows, or a nodejs script on
Unix-like systems (i.e. Linux, Mac OS).

see #721

kehugter/adsbypasser,tablesmit/adsbypasser,xor10/adsbypasser,tosunkaya/adsbypasser,tablesmit/adsbypasser,MNBuyskih/adsbypasser,kehugter/adsbypasser,tosunkaya/adsbypasser,tablesmit/adsbypasser,xor10/adsbypasser,MNBuyskih/adsbypasser,tosunkaya/adsbypasser,kehugter/adsbypasser,xor10/adsbypasser,MNBuyskih/adsbypasser