CodemirrorAsset.php typo

[TimNZ]

In 'private static $_js' need to change

self::ADDON_DISPLAY_FULLSCREEN =>'addon/display/fullscreen.css',

to

self::ADDON_DISPLAY_FULLSCREEN =>'addon/display/fullscreen.js',

Can't be bothered do a fork/pull request

[borodulin]

Done! Thank you.

[TimNZ]

Thanks, good work.