astro 1.0.0-beta.18

#3207 22cb4b7b Thanks @matthewp! - Disables file watching during the build
#3191 205d1f07 Thanks @JuanM04! - Added better types to importing Markdown
#3183 7a61977d Thanks @bholmesdev! - Support "astro add" before installing project dependencies
#3209 fdd607c5 Thanks @Princesseuh! - Add is:raw to AstroBuiltinAttributes
#3198 1a86e77c Thanks @JuanM04! - Markdown file.url now respects trailingSlash and base
#3187 75dab3ca Thanks @bholmesdev! - Fix: remove online editor configs (stackblitz and code sandbox) from create-astro output
#3205 e4bb2767 Thanks @Princesseuh! - Added Astro attributes to SVG elements in JSX definition
#3170 19667c45 Thanks @matthewp! - Netlify Edge: Forward requests for static assets
#3186 2b702d6a Thanks @bholmesdev! - Fix: astro add generating "astro.config.mjs" outside project root