[INFRA] Replace Gatsby by Astro #1050
Description
https://docs.astro.build/en/guides/migrate-to-astro/from-gatsby/
- https://astro.build/
- https://docs.astro.build/en/getting-started/
- https://docs.astro.build/en/guides/integrations-guide/
- https://docs.astro.build/en/guides/integrations-guide/react/
- https://docs.astro.build/en/guides/integrations-guide/image/
- https://docs.astro.build/en/guides/integrations-guide/mdx/
- https://docs.astro.build/en/guides/integrations-guide/sitemap/
- https://docs.astro.build/en/guides/typescript/
emotion and material UI are not supported Astro: by withastro/astro#4432