Displays : Fix csv export datatable js alert xibosignage/xibo#2531
Displays : Fix csv export datatable js alert
xibosignage/xibo#2531

(cherry picked from commit 6fb087437f242a89c813f2ba68300be70b4d51a3)

xibosignage/xibo-cms,dasgarner/xibo-cms,xibosignage/xibo-cms,dasgarner/xibo-cms,xibosignage/xibo-cms,dasgarner/xibo-cms,xibosignage/xibo-cms,xibosignage/xibo-cms,dasgarner/xibo-cms,dasgarner/xibo-cms,xibosignage/xibo-cms,dasgarner/xibo-cms