fix: retrieve raw content from TinyMCE editor (#31212)#31500

pdpinch merged 1 commit intoopenedx:open-release/olive.masteropenedx/openedx-platform:open-release/olive.masterfrom

mitodl:asad/backport-tinymce-fix-for-olivemitodl/edx-platform:asad/backport-tinymce-fix-for-oliveCopy head branch name to clipboard