Layouts: Rebuild when image processing has completed. xibosignage/xibo#2335
Layouts: Rebuild when image processing has completed. xibosignage/xibo#2335

(cherry picked from commit f1e6441203203db2688ad2721543c6d62cae8240)

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