Revert "trim title off body if detected"

This reverts commit 5c27d9c0ea.

src/index.ts

@@ -83,7 +83,7 @@ export default function gemtext(config: GemtextConfig = {}): AstroIntegration {
                             )
 
                         if (data["title"]) {
-                          body = body.replace(`# ${data["title"]}\n`, '');
+                          body.replace(`# ${data["title"]}\n`, '');
                           body = body.trim();
                         }