manager: fix rewriting of mailto: links in docs

Author: theo-o

manager/director/apps/docs/utils.py

@@ -105,7 +105,7 @@ def rewrite_markdown_link(
     base_page_name = base_page_name.strip("/")
 
     # If it's not an external link, rewrite it
-    if not parts.netloc and parts.path:
+    if parts.scheme != "mailto" and not parts.netloc and parts.path:
         # Extract the path for rewriting
         path = parts.path