* chore(v2): tweak image opt before moving to docusaurus-plugin-image
* lint
* feat(v2): convert to docusaurus-plugin-ideal-image
* tweak
* dont need many img
* fix dev err
* tweak
* opt png
* lower qual
* feat(v2): improve seo
- Add doc specific seo information
- Add twitter meta tags to seo in theme Layout
* Cannot use svg in SEO image
* Add docs about SEO
* add site default image for seo
* Resolve PR discussion
* Add `image` to config optional fields
* Use theme config instead of root config for image, rename in front matter
* Use absolute url for image (wont work on preview)
* update docs for frontmatter field for seo
* refactor
* pages seo
* fix
* nits again'