fix(react-email): Static files regression (#2009)

Author: gabrielmfern

.changeset/dry-tips-do.md

@@ -0,0 +1,5 @@
+---
+"react-email": patch
+---
+
+Fix static files regression

packages/react-email/src/cli/utils/preview/serve-static-file.ts

@@ -14,13 +14,7 @@ export const serveStaticFile = async (
   const pathname = parsedUrl.pathname!;
   const ext = path.parse(pathname).ext;
 
-  const fileAbsolutePath = path.resolve(staticBaseDir, pathname);
-
-  if (!fileAbsolutePath.startsWith(staticBaseDir)) {
-    res.statusCode = 403;
-    res.end();
-    return;
-  }
+  const fileAbsolutePath = path.join(staticBaseDir, pathname);
 
   try {
     const fileHandle = await fs.open(fileAbsolutePath, 'r');