Link the private contact to a web page, since GitHub won't take mailto

GitHub ignored the mailto link in the issue chooser, and with it the
setting that turns off blank issues. The privacy page carries the
address, and the description names it too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: TheFilipcom4607

.github/ISSUE_TEMPLATE/config.yml

@@ -4,5 +4,5 @@ contact_links:
     url: https://github.com/TheFilipcom4607/tabor/discussions/categories/q-a
     about: Jak coś działa albo dlaczego jest tak, a nie inaczej? Zapytaj w Discussions. / How does something work, or why is it that way? Ask in Discussions.
   - name: ✉️ Coś prywatnego / Something private
-    url: mailto:tabor@thefilip.com
-    about: Problem z bezpieczeństwem albo coś, czego nie chcesz pisać publicznie. / A security problem, or something you'd rather not post in public.
+    url: https://thefilip.com/tabor/privacy
+    about: Problem z bezpieczeństwem albo coś, czego nie chcesz pisać publicznie? Napisz na tabor@thefilip.com. / A security problem, or something you'd rather not post in public? Write to tabor@thefilip.com.