* attempt to fix contentTitle issues when markdown h1 title contains inline code blocks
* mention hide_title frontmatter only prevents frontmatter.title from being added in the dom (not a markdown # title in content)
* alwayss insert MainHeading under the div.markdown container for consistency
* ensure MainHeading has no useless id
* revert https://github.com/facebook/docusaurus/pull/4859 as it's now useless: docMeta.title contains the text/frontmatter title in priority over the contentTitle
* fix docs test after revert
* improve markdownParser and fix tests
* fix docs tests
* markdownParser: restore option to remove contentTitle (mostly for blog plugin)
* use removeContentTitle for blog
57806798c5