fix(email-renderer): honor explicit heading typography

packages/email-renderer/src/blocks.ts

@@ -340,7 +340,7 @@ export const headingBlock = leaf(
   {
     emailHtml: ({ node }) =>
       emailCell(
-        `<h${attrs(node).level} style="font-family:inherit;margin:0 0 16px;">${renderRichText(attrs(node))}</h${attrs(node).level}>`,
+        `<h${attrs(node).level} style="font-family:inherit;margin:0 0 16px;${emailStyleValue("fontSize", styleBase(node, "fontSize")) ? "font-size:inherit;line-height:1.2;" : ""}${emailStyleValue("fontWeight", styleBase(node, "fontWeight")) ? "font-weight:inherit;" : ""}">${renderRichText(attrs(node))}</h${attrs(node).level}>`,
         node,
       ),
     ampEmail: ({ node }) =>