Sections: label instead headline

Co-authored-by: Nico Hoffmann  ෴ <me@nhoffmann.com>

site/blueprints/sections/notes.yml

@@ -3,7 +3,7 @@
 # Sections can have different layouts and display additional information or a preview image
 # More about pages sections: https://getkirby.com/docs/reference/panel/sections/pages
 type: pages
-headline: Notes
+label: Notes
 parent: kirby.page("notes")
 info: "{{ page.published }}"
 template: note