fix: data-source-* attributes in HTML code view (#2444)

Author: gabrielmfern

.changeset/open-queens-sniff.md

@@ -0,0 +1,5 @@
+---
+"@react-email/preview-server": patch
+---
+
+fix data-source-\* attributes in the html code view

packages/preview-server/src/actions/render-email-by-path.tsx

@@ -86,21 +86,18 @@ export const renderEmailByPath = async (
   const EmailComponent = Email as React.FC;
   try {
     const element = createElement(EmailComponent, previewProps);
-    const [markupWithReferences, prettyMarkup, markup, plainText] =
-      await Promise.all([
-        renderWithReferences(element, {
-          pretty: true,
-        }),
-        render(element, {
-          pretty: true,
-        }),
-        render(element, {
-          pretty: false,
-        }),
-        render(element, {
-          plainText: true,
-        }),
-      ]);
+    const markupWithReferences = await renderWithReferences(element, {
+      pretty: true,
+    });
+    const prettyMarkup = await render(element, {
+      pretty: true,
+    });
+    const markup = await render(element, {
+      pretty: false,
+    });
+    const plainText = await render(element, {
+      plainText: true,
+    });
 
     const reactMarkup = await fs.promises.readFile(emailPath, 'utf-8');