Prevent default browser scroll in space key event

[ghost]

Very minor issue but it annoyed me to no end.
Page scrolls when using the space key, so closing an item scroll the page every time. I didn't notice this until I set the number of items per page to overflow the window.
script.js

case 32: // 'space'
        toggleCurrentItem();
        e.preventDefault(); // Added this, but it's not the best solution since it turns a key completely off