* refactor: remove experimental.cc from core
* chore: remove experimental flag from tests
* fix: mock contentDir in remark tests
* fix: check vfile.path in rel-image-error plugin
* fix: move .astro/ excludes to all test/fixtures
* fix: include test/**/fixtures in ignore
* chore: changeset
* feat: use internal MDX tooling for markdown + components
* fix: improve MD + component tests
* chore: add changeset
* fix: make tsc happy
* fix(#3319): add regression test for component children
* fix(markdown): support HTML comments in markdown
* fix(#2474): ensure namespaced components are properly handled in markdown pages
* fix(#3220): ensure html in markdown pages does not have extra surrounding space
* fix(#3264): ensure that remark files pass in file information
* fix(#3254): enable experimentalStaticExtraction for `.md` pages
* fix: revert parsing change
* fix: remove `markdown.mode` option
