fix context-menu

[skalimer0]

Hello,

On Firefox the context-menu is not attach on mouse position.

You fix this on SidebarToogle.js :

// Fix issue with context menu position if (this.$main.css('position') === 'relative') { $(window).on('load', function () { $('#context-menu').appendTo('#wrapper3') }) }

It's OK on Chrome, but i think for Firefox it need to be on 'ready' event not 'load' or add detach() method before appendTo() :
$('#context-menu').detach().appendTo('#wrapper3')

Thanks

[mrliptontea]

Fixed by #262