Merge branch '9.3.x' into dontbreakstuff

core/core.libraries.yml

core/misc/jquery.once.bc.es6.js

core/misc/jquery.once.bc.js

core/modules/block/block.libraries.yml

core/modules/ckeditor/ckeditor.libraries.yml

core/modules/color/color.libraries.yml

core/modules/comment/comment.libraries.yml

...les/content_translation/content_translation.libraries.yml

core/modules/contextual/contextual.libraries.yml

core/modules/editor/editor.libraries.yml

core/modules/field_ui/field_ui.libraries.yml

core/modules/file/file.libraries.yml

core/modules/filter/filter.libraries.yml

core/modules/language/language.libraries.yml

core/modules/locale/locale.libraries.yml

core/modules/media_library/media_library.libraries.yml

core/modules/node/node.libraries.yml

core/modules/quickedit/quickedit.libraries.yml

core/modules/settings_tray/settings_tray.libraries.yml

core/modules/system/system.libraries.yml