Fix greedy replacement pattern (#342)

Co-authored-by: Mehdi Achour <[email protected]>

Author: nimajneb

stitches/app/entry.server.tsx

@@ -16,7 +16,7 @@ export default function handleRequest(
   );
 
   markup = markup.replace(
-    /<style id="stitches">.*<\/style>/g,
+    /<style id="stitches">.*?<\/style>/gs,
     `<style id="stitches">${getCssText()}</style>`,
   );