astro 1.0.0-rc.5

#4108 08432d5b0 Thanks @altano! - Allow globbed mdx files to have typed frontmatter
#4125 5f3b3b44d Thanks @natemoo-re! - Fix HMR of style blocks in Astro files. Updating a style block should no longer perform a full reload of the page.
#4131 09eca9be5 Thanks @matthewp! - Fixes use of multiple renderers when one throws
#4141 65f2d3b4b Thanks @FredKSchott! - fix windows "bad package export" error
#4063 ec5518fe3 Thanks @vikpe! - Add mdx extension to default generated Tailwind config.