add aria-disclosure for all dropdown buttons

app/views/users/dossiers/_dossier_actions.html.haml

@@ -5,9 +5,9 @@
 
 - if has_actions
   .dropdown.user-dossier-actions
-    %button.button.dropdown-button
+    %button.button.dropdown-button{ 'aria-expanded' => 'false', 'aria-controls' => 'actions-menu' }
       Actions
-    .dropdown-content.fade-in-down
+    #actions-menu.dropdown-content.fade-in-down
       %ul.dropdown-items
         - if !dossier.read_only?
           - if dossier.brouillon?

app/views/users/dossiers/show/_header.html.haml

@@ -16,9 +16,9 @@
         - if dossier.can_be_updated_by_user? && !current_page?(modifier_dossier_path(dossier))
           = link_to "Modifier mon dossier", modifier_dossier_path(dossier), class: 'button accepted edit-form', 'title'=> "Vous pouvez modifier votre dossier tant qu'il n'est passé en instruction"
         %span.dropdown.print-menu-opener
-          %button.button.dropdown-button.icon-only{ title: 'imprimer', 'aria-label': 'imprimer' }
+          %button.button.dropdown-button.icon-only{ title: 'imprimer', 'aria-label': 'imprimer', 'aria-expanded' => 'false', 'aria-controls' => 'print-menu' }
             %span.icon.printer
-          %ul.print-menu.dropdown-content
+          %ul#print-menu.print-menu.dropdown-content
             %li
               = link_to "Tout le dossier", dossier_path(dossier, format: :pdf), target: "_blank", rel: "noopener", class: "menu-item menu-link"