feat: add can_stand_alone flag to publishable entity [FC-0083]#289

pomegranited merged 3 commits intoopenedx:mainopenedx/openedx-learning:mainfrom

open-craft:navin/fal-4107/stand-alone-flagopen-craft/openedx-learning:navin/fal-4107/stand-alone-flagCopy head branch name to clipboard