fix: update xblock-drag-and-drop for a high level security alert#705

Ian2012 merged 2 commits into

ednx-release/mango.mastereduNEXT/edunext-platform:ednx-release/mango.masterfrom

cag/security-patch-drag-and-drop-xblockeduNEXT/edunext-platform:cag/security-patch-drag-and-drop-xblockCopy head branch name to clipboard