Merge branch 'renovate/content-editor-packages' into 'master'

...ts/content_editor/components/wrappers/table_cell_base.vue

...scripts/content_editor/extensions/code_block_highlight.js

app/assets/javascripts/content_editor/extensions/diagram.js

...sets/javascripts/content_editor/extensions/frontmatter.js

...ets/javascripts/content_editor/services/content_editor.js

...ascripts/content_editor/services/create_content_editor.js

app/assets/javascripts/lib/markdown_it.js

...assets/javascripts/lib/prosemirror_markdown_serializer.js

config/webpack.config.js

package.json

...ontent_editor/components/wrappers/table_cell_base_spec.js

yarn.lock