replace html labels with h2 elements

Some elements should not be html labels, for example when they include sub-elements that contain labels (ex: a radio button that has a label on its own). Those are replaced with title elements

app/views/shared/dossiers/editable_champs/_champ_label.html.haml

@@ -1,11 +1,10 @@
-= form.label champ.main_value_name do
-  #{champ.libelle}
-  - if champ.mandatory?
-    %span.mandatory *
-
-  - if champ.updated_at.present? && seen_at.present?
-    %span.updated-at{ class: highlight_if_unseen_class(seen_at, champ.updated_at) }
-      = "modifié le #{try_format_datetime(champ.updated_at)}"
+= # we do this trick because some html elements should use 'label' and some should be plain paragraphs
+- if has_html_label?(champ)
+  %h2.label-not-label
+    = render partial: 'shared/dossiers/editable_champs/champ_label_content', locals: { champ: champ, seen_at: seen_at }
+- else
+  = form.label champ.main_value_name do
+    = render partial: 'shared/dossiers/editable_champs/champ_label_content', locals: { champ: champ, seen_at: seen_at }
 
 - if champ.description.present?
   .notice{ id: describedby_id(champ) }= string_to_html(champ.description)

app/views/shared/dossiers/editable_champs/_champ_label_content.html.haml

@@ -0,0 +1,7 @@
+#{champ.libelle}
+- if champ.mandatory?
+  %span.mandatory *
+
+- if champ.updated_at.present? && seen_at.present?
+  %span.updated-at{ class: highlight_if_unseen_class(seen_at, champ.updated_at) }
+    = "modifié le #{try_format_datetime(champ.updated_at)}"